SRAM Eagle Drivetrain - Review

Nov 16, 2016
by Mike Kazimer  
SRAM Eagle Review


Last spring SRAM unveiled their new 12-speed, 1x mountain bike drivetrain amidst the rolling hills and vineyards of Massa Marittima, Italy. It was a picturesque setting to begin getting acquainted with the new gruppo, dubbed 'Eagle', but it's the miles that took place on home turf after that initial introduction that really matter.

A massive range courtesy of a 10-50 tooth cassette, and a host of other improvements over SRAM's previous offerings all look good on paper, but how did the Eagle components fare after four months of riding in conditions that ranged from sunny to sloppy and everything in between? We'll get to that soon enough, but first, a brief recap for those who missed the initial First Look article.


SRAM X01 Eagle Details

• 1x specific drivetrain
• 12-speed, 10-50 tooth cassette
• X Sync 2 chainring
• Carbon crankarms
• Trigger or Grip Shift
• Weight: 1509 grams (3.32 lb)
• Price: $1,193 USD
www.sram.com / @SramMedia


SRAM Eagle Review
SRAM Eagle Review

XG-1295 Eagle Cassette

The biggest talking point about Eagle has to be the 12-speed cassette. With a 10-50 tooth spread it offers a 500% gear range, a number that's in the realm of what you'd get with a 2x drivetrain, except that there's no front derailleur required with Eagle. The tooth count of the first 11 cogs on the Eagle cassette are the same as they are on SRAM's 11-speed 10-42 cassettes (10-12-14-16-18-21-24-28-32-36-42), with the 10-tooth cog sitting in exactly the same position.

The spacing between each cog is ever-so-slightly tighter, and the final 50-tooth cog sits two millimeters closer to the spokes than the 42-tooth cog would on an 11-speed cassette. Despite the extra cog, the cassette still works with a standard XD driver body, which is welcome news for riders calculating all the parts they'll need to purchase in order to upgrade their drivetrains. Weighing in at 360 grams, the $360 USD cassette is approximately 100 grams heavier than an XX1 11-speed cassette.


SRAM Eagle Review

XO1 Eagle Derailleur

The XO1 Eagle derailleur ($220) isn't radically different from SRAM's 11-speed options, but the lower pulley wheel does have two extra teeth to allow it to work with the expanded cassette range. The cage itself is also longer, causing a slight reduction in ground clearance – when positioned in the 42-tooth cog the bottom of the Eagle derailleur's cages sits approximately three centimeters lower than that of an XO 11-speed derailleur.

Other updates include version 3.0 of SRAM's roller bearing clutch mechanism, a revision that's designed to create a smoother feeling as the cage moves forward while still providing enough retention to keep chains from bouncing off. The Cage Lock button, which is used to take the tension off the derailleur in order to make it easier to remove the rear wheel, has also been relocated away from the front of the derailleur to better protect it from impacts. The B-knuckle (the portion of the derailleur that's threaded onto the hanger) has been tweaked to help keep the mounting bolt from unthreading itself, and there's now a bushing around the mounting bolt that lets the derailleur pivot forwards and back without bringing the bolt with it.


SRAM Eagle Review
SRAM Eagle Review


Shifter

The shifter keeps the same familiar SRAM ergonomics, but of course, there are now 11 clicks. The smaller trigger drops the chain down one cog at a time, and the larger thumb paddle can be used to move the chain up to five cogs at a time depending on how far it's pushed.


Eagle 12-Speed Chain

SRAM says the Eagle chain is “the quietest, strongest, and most wear resistant chain in the world.” We'll see about that, but in any case, the overall dimension are narrower than an 11-speed chain, and the pins are flush with the body in order to keep them from hanging up on the cassette cogs.


SRAM Eagle Review
SRAM Eagle review

Eagle Chainring / Crankset

That big cassette may be the star of the show, but the Eagle chainring is also worth a look, especially since it's compatible with 11-speed chains as well. The teeth have a much more aggressive profile and a revised shape, changes that are intended to increase chain retention along with reducing the amount of noise created by the chain rubbing on the teeth, especially at the far ranges of the cassette.

The XO1 carbon cranks use SRAM's familiar direct mount interface to secure the chainring, and are available in 170 and 175mm lengths. They're not just for XC riding either - SRAM tested them to the same standard as their DH cranks in order to ensure they could handle aggressive trail riding and enduro racing.



SRAM Eagle review



Eagle pricing





Installation

Installation of the Eagle drivetrain is relatively straightforward, although there is one important part of the setup that needs extra attention: adjusting the B-gap, or the distance from the upper derailleur pulley to the cassette.

A plastic tool is included with the drivetrain to facilitate the process, and SRAM have also created a video that outlines the process. With the bike in the sagged position, the tips of the largest cog's teeth are supposed to line up with the outline on the tool. A 3mm hex is used to adjusted the derailleur's position, and after that it's just a matter of making any fine adjustments necessary by using the shifter's barrel adjuster.

SRAM Eagle Review




On the Trail

The first couple of miles on the Eagle drivetrain were, well, a little noisier than I'd expected. The cassette emitted a sort of creaking / groaning sound, almost like a door hinge in need of some oil. And then, suddenly, the noise stopped, and silence took its place. It seems as if there's a bit of a bed in period with the cassette, and the sounds I heard was everything getting settled in. I've experienced this on more than one test bike, and in all instances the sound goes away after a few miles and doesn't return.

When talking about drivetrains, there inevitability seems to be two different camps of riders that crop up – those who feel that anyone who needs more range than what's provided by an 11-32 cassette are somehow inferior, and those who want to spin their way up vertical walls, and want the absolute easiest gear possible. Me? I'd put myself somewhere in the middle. I live in an area surrounded with ridiculously steep logging roads, and I don't feel any shame in using my granny gear to get to the top of a climb, especially if the alternative is getting off and pushing. I took full advantage of the Eagle cassette's 50-tooth cog, especially towards the end of long days where my legs felt like they were filled with concrete. For my chainring, I went with one that was two teeth larger than what I normally run (a 34 rather than a 32-tooth) in order to gain range on both ends of the cassette. With this setup I found myself spending more time closer to the middle of the cassette rather than in the larger, easier gears, which meant that I always had a bailout gear or two for when things got extra steep.

Shifting is crisp and quick, without any hesitation between gears. Not surprisingly, it feels almost exactly like an 11-speed XX1 drivetrain, except that there's now one more click. There's a silky smoothness to the way the chain interacts with the cassette and chainring that makes it all feel like one cohesive system, rather than an amalgamation of components. In other words, it feels really, really nice. The eight-tooth jump from the 42- to the 50-tooth cogs did sometimes sound a little louder than the other shifts, but the chain always ended up exactly where it was supposed to be, even when shifting on a steep uphill. That jump between those final two gears didn't bother me out on the trail, although it may take time for riders that are more particular about their cadence to get used to it. As I mentioned, I typically used that cog as a bailout, a last ditch effort to keep my momentum on tricky climbs.
Views: 6,621    Faves: 3    Comments: 3



What about backpedaling? It's no secret that on certain 11-speed drivetrains, and depending on the chainline, riders have reported issues with the chain dropping down the cassette when they backpedal. I made a conscious effort to backpedal more than usual when I was riding an Eagle-equipped bike, and in all instances the chain stayed in place. This was the case on multiple bikes with various chainlines and rear axle spacings.

As far as completely dropping the chain, I've only had that happen twice, and that's over the course of a test period that included hundreds of miles on extremely rough trails. Of course, a chain guide still isn't a bad idea, especially for racers, but I've was impressed with how well that chain stayed in place no matter what type of nastiness I was pinballing through.


Durability

Last month was one of the wettest on record here in the Pacific Northwest, which gave me plenty of chances to cap off the test period by dunking the derailleur in puddles and coating the entire drivetrain in a mixture of loam and mud. Throughout all of the inclement conditions the sensation while pedaling remained impressively smooth. I'm not sure whether to attribute that to the new tooth shape, the redesigned chain, or the revised upper pulley wheel, but in any case the grinding / gritty feeling that can occur in the mud on SRAM's 11-speed drivetrains was absent.

I also didn't need to re-tighten the derailleur on to the hanger – once it was installed it stayed in place, right where it belonged. The clutch tension has also remained consistent, and feels the same throughout the full range of the pulley arm.



Pinkbike's Take:
bigquotesThe wide range of the Eagle drivetrain's cassette is going to be the most appealing trait for many riders, but it's the little things like the improved B-knuckle, the elimination of the narrow wide teeth on the derailleur's upper pulley wheel, and the revised chainring profile that help make this SRAM's best mountain bike drivetrain yet. The price is fairly high at the moment, but don't forget, this is SRAM's top-of-the-line gruppo; it's not a stretch to imagine that more attainable options are in the works.- Mike Kazimer



Visit the high-res gallery for more images from this review





309 Comments

  • + 424
 Dear Pinkbike,

I'm about to put a 1x10 shimano drivetrain on a Transition Patrol. Do you think I'll be able to have any fun at all?

-worried in Arizona
  • + 53
 That bike is fun no matter what is on it.
  • + 158
 Don't worry, you'll have loads of fun. Just remember to go fast and take chances.
  • + 83
 Just installed 10 speed slx on my chromag hardtail. Mech, shifter and cassette cost me 100 bucks brand new. shifts perfectly every time, and absolutely bombproof. I can safely say I will never use eagle on any of my bikes, but I love what its doing to the price of "limited range" drivetrains.
  • + 21
 You'll have fun...and some damn strong quads to boot!
  • + 7
 Praxxis makes a wide 10spd cassette. I think it has a 42T on it to give you more uphill juice. Worth checking out!
  • + 42
 Dude I've got a 1x9 in BC and I'm fine. Don't worry too much, just ride.
  • + 72
 Sorry man. People are just going to laugh at you. Riding your 10 speed around? Nobody rides 10 speeds anymore. There's just no range in those gears. You probably won't even be able to pedal that bike DOWN the hill.

But seriously...instead of putting more gears on the back, why don't they just add a couple more to the front? That range would be INCREDIBLE!
  • + 39
 @danstratplr: Yep. And if you're a REAL cheapo like me, then you can get the sunrace 11-42 cassette Smile
  • + 3
 I run a 1x10 on my hardtail and never have found myself wanting for more. However, I would recommend getting either an expander cog or a wide range 10x casset from Praxxis or E-13. If you do decide to keep a traditional 1x10 11-32 cassette, I would run either a 30 tooth or 28 tooth chainring up front to play it safe.
  • + 11
 @mikekazimer: haha I took chances last week ended up breaking my collar bone, shoulder and 2 ribs
  • + 1
 Running a 1x10 Shimano XT with 11-40T (using the ONE-Up 40T cog). Bombproof and nuff range!
  • + 20
 Really? 1x10 and 2x10 aren't fun any more?1x11 will only be fun for a little longer?

I see kids on bikes with 0 gears smiling like crazy people. Did you see the video with matt hunter and his son? His son was having a great time with zero gears. It's all fun!

RIDING A BIKE IS FUN!!!!!!
  • + 16
 @danstratplr: Sunrace 11-42t 10 speed for £38.
  • + 20
 Shimano ZEE all the way, 1x10 , 11-36 and 32 in the front. Your calves will never look so good Big Grin
  • + 3
 @Grutten: 11-46 man...bought one kicks ass. Run 34 up front!! (well gotta run 11spd ... doh!)
  • + 10
 I ride 1x9. Stop showing off Richie Rich.
  • + 0
 @acetasting1992: lol pretty much sums it up.
  • + 0
 @stormrider99: I run a custom 8 speed 13-40T cassette with no problems. Cheapest way to go with an easier bottom gear. I run a 30T front ring.
  • + 4
 @fartymarty: Then put a Wolf Tooth 49t cog on and you have what I affectionately call the "Vulture" drivetrain. At almost a tenth of the cost and only two teeth different you have a range that is within 12% of the Eagle. Party.
  • + 1
 @danstratplr:

I've had one and it wore out in like 6 months. I may have had bad luck, but at this point I'd avoid it. You're better off with an XT 10spd cassette and an adapter. I thought the praxxis was a dream come true. If you need big cogs XT8000 is probably your best bet long term.

That said, my old XT 10speed set up was the best shifting I've had. with 29inch wheels, 2.35s, steep climbs, and not impressive fitness the 42T really really helps, though.
  • + 9
 @mikekazimer: if you were spending your own money on a drivetrain, would you use anything besides Shimano XT?
  • + 3
 @JesseE: We tried selling some Praxxis cassets at the shop, and all the feedback was that they are junk and wear out sooooooo fast. Would stay away from in big time. Sunrace is our replacement for the praxxis and seem to be a good casset
  • + 5
 @BoneDog: I have a Sunrace CSMX3 with a season on it and it's still in great shape, so I vote for sunrace too. It's also nice that you can get them in all black.
  • + 2
 You'll only have fun if you hit Holbert and Geronimo at South Mountain for me. You have some sick riding in AZ.
  • + 0
 @hellbelly: I like it but my Zee mech probably wont. It maybe worth a try though. Thanks for the tip Vulture >> Eagle any day.
  • + 1
 @fartymarty: just buy a new knuckle and you can run wide range cassets.
  • + 0
 @BoneDog: I run a 42 at the moment without any issues so could probably get a 44 or 46 to work maybe even a 48. Where do you get the knuckle from?
  • + 2
 @mikekazimer: Safety third!
  • + 3
 I don`t think you should be worried at all. On my Specialized Pitch pro (2009) I used to have a 3x9, I removed the front derailleur and since I didn`t want to change my hub, I left it as a 1x9. If your worry is not having enough gears, unless you`re going to do some almost straight up the wall climbs I think you should be okay (where I live it works out very well). To go into more detail, I have found that my biggest cog (36 teeth) has been more efficient on my climbs since there is less turning and more power, but as I said before if you just want to be going at a leisure pace and going up some super steep climbs then you should get ready for a calf and hamstring workout.

P.s I ride a 32 tooth Chainring in front.

-All the best with your adventure
  • + 4
 I run a SRAM 1x10 drivetrain on my Patrol with a 32 chainring and have been fine. Having a 40t or 42t cog would probably be helpful, but I have a sort of single speeder mindset. Just learn to mash the pedals when it gets steep and you'll get used to it and stronger for it. I rather race up the climbs than move slower than a walking pace Smile

In my opinion this Eagle thing is specialized and not necessary for most. I have to imagine it's for those you need a higher top speed, so they want to run a bigger chainring without sacraficing their short gearing for the climbs. Everyone else is just buying it for the bling of having the newest thing.

Where you at in AZ? I live close to Hawes Trail system in Mesa.
  • + 1
 @danstratplr: It's an 11-40T but I have one and it's every bit as good as the former XT cassette I ran
  • + 2
 @fartymarty: FWIW I'm running a Zee mech with a GoatLink on an 11-42 cassette and it's all sunny happy joyful.
  • + 2
 @BiNARYBiKE: you will have more fun with the 1x10 than smashing this expensive drivetrain against the rocks in AZ.
  • + 1
 @JesseE: what did you wear out in six months?
  • + 3
 In all fairness, over a third of the price goes to the cranks and chain ring. In case you're only interested in upgrading your shifting, the derailleur + shifter + cassette + chain will cost $792. With online deals nowadays it will mean you'll probably be able to collect that together for +- $600. Then suddenly it becomes interesting for a much bigger amount of people.

This drive train seems amazing, but even without the cranks it will still be out of my price range. Next time I'll need to replace my drivetrain I'll choose for the XT M8000 group with the 11-46 chain ring because of it's price and price to quality ratio.
  • + 1
 @acetasting1992: Same here, still rocking my 4 years old 1x10 SLX on the Stylus. The thing is boombroof and I find that if I get into steeps that have me run out of low gears, I'm generally faster pushing anyways Wink It's true that I see going up as a means of being ablo to ride down though, so someone who actually enjoys uphill too might be more picky...
  • + 5
 When you are doing 45min to an hour long grindy climbs, you might really want that bail-out gear at some point.
  • + 4
 @Thustlewhumber: yes that's what people miss when talking about the lower ranges. Do I ride steep climbs? You bet, but I can handle most of them with a 32x36 no problem. But take that same steep climb and make it 1/2mi long and it REALLY changes things.
  • + 4
 @HK-Mazur: Oh god. You and other people need to understand that very one is different and you just don't know what works for others or what it's best for them.
I had to deal with a smaller range and a single chainring and it does makes you stronger but also you get more tired easily and the "it only makes you stronger" type of bullsh*t wouldn't make you feel better when you are in low energy.
  • + 1
 @Benm1654: Can't win them all, bummer I'm about 2 years out from one of those chance taking expeditions and just last weekend tried some new jumps with my buddy and lived to tell about it. You'll shred again soon!!
  • + 3
 I just finished a build of banshee rune v2 and it goes like this:
1x10 speed sram x9 ( i know there's eagle)
26" wheels ( i know there's 27.5 wheels )
Avid elixir 9 trail (I know there's new sram rsc) ...
AND I KNOW I WILL ENJOY THE RIDES.

Guys I'm the happiest person on the world as I have build what I want. DONE.

R35P3C7 70 4LL 7H3 R1D3R5 0U7 7H3R3.
  • + 1
 @BoneDog: Good to know. Praxxis was actually good about it and warrantied mine. Personally, I'll stick to XT or SLX Cassettes, cause I just don't wanna mess around. If I was still 10spd,though, I'd have to try a sunrace.
  • + 2
 Can't wait for Srams 15 speed drivetrain called Volture!
  • + 1
 @hogfish: yeh bro all a part of mountain biking, started to try out some no handers but forgot all about the style of the jumping. out for 7 weeks
  • + 1
 @Grutten: I have the same cassette and it works just as well as an 11 speed but u don't have to get a new hub. Frickin awesome
  • + 1
 could not agree more!
  • + 2
 Same set up my man, who needs more than 1x10?
  • + 2
 @passwordpinkbike: Once you get stronger and more conditioned, you will have more energy for longer. Big Grin
  • + 1
 @Grutten: that's where my money's gone for both my bikes £38 ($47) each, precise flawless shifting and all the range I ever need with an RAD caged XT mech . Who pays $360 for a cassette?! Seriously.
  • + 2
 Exactly what I ride! Patrol + 1x10 Zee drivetrain = awesome! 32 up front and 11-36 rear. Fun all day!
  • + 1
 I have the 11s version in my cross bike and it shifts well, looks good, and didn't weigh a ton.
  • + 232
 ERROR 404: $1193 NOT FOUND
  • + 34
 You could buy a half decent bike for the same price.
  • + 24
 @fartymarty: haha no you can't.
  • - 4
flag scottz92 (Nov 16, 2016 at 6:31) (Below Threshold)
 @kmg0: In Britain you probably could in america no.
  • + 2
 in canada no as well lol
  • + 133
 Here in Africa that is enough money to buy a house AND two buffalo to feed your pet lion.
  • + 5
 @kmg0: Tons of used Kona Honzos here on PB beneath that cost.
  • + 2
 @hellbelly: If you're counting used bikes sure. I bet you can get a used drivetrain for cheaper than that too. I sold my Eagle group for $600, bought XT and put $300 in my pocket.
  • + 2
 $349 for the new E*13 cassette that has 511% range vs the eagle 500% range and it works with existing 11speed components. Just have to have an XD driver hub.
  • + 6
 With all the home made 1x10 setups possible you would have to be a pro not to look like a dentist riding around with the latest bling. The question is, if you're not racing, WHY DO YOU NEED THAT EXTRA 2 GEARS?
  • + 1
 @Spark24: How much for your pet lion ? Wink
  • + 14
 @boxxerace: One does not simply purchase a lion... They walk around in our city streets... When one plays an Elton John soundtrack from the mid-90's aloud they will simply pick your house as their new abode... They are still cats really... They choose you
  • + 2
 @fartymarty: I'm building up a remedy frame for that price$1100 total with a few parts borrowed from my hard tail
  • + 2
 @JayTucc: If you do not have an XD driver (like me), do not want to pay for expensive conversion (Hadley $180+/-), a new wheel, and can live without a tiny bit less high/low end you can save quite a bit going with my Vulture route.

@kmg0: Used steel is rarely an issue.
  • + 1
 Look at my bike: single speed. Problem solved.
  • + 4
 @kmg0: you put 300 in your pocket, but aren't you still out 600 dollars now?
  • - 2
 @thook: came on my new bike. helped subsidize my bike. i dont care what you ride. bye
  • + 1
 @fartymarty: 1/3 of a decent bike...
  • + 1
 ya really lol, ERROR 404 is right
  • + 71
 We now live in a world where cassettes are larger than our brake rotors. Sorry bicycle gods. Please don't punish us with an unwanted president. Ah, crap.
  • - 87
flag therealtylerdurden (Nov 15, 2016 at 22:25) (Below Threshold)
 Just because YOU didn't want him doesn't mean that half of America also didn't.
  • + 85
 @therealtylerdurden: the cycling/ environmentally concerned community does not want him.
  • + 80
 @bridgermurray: the rest of the world doesn't want him either !
  • + 28
 @therealtylerdurden: Half of America may change their minds when he fails to deliver. The wall has already been down graded to a fence in places.
  • + 35
 @therealtylerdurden: I REALLY wouldn't want to be the kind of person that thinks Trump is a good idea - seems to me that this should be right up there with "torturing puppies as a kid" as a precursor/indicator of psychopathy.

But the REAL question is - what would the evil bastard's HELMET HAIR look like, I wonder?
  • + 62
 @therealtylerdurden: over half of America didn't bother to put their pizza pops down, get off their fat assessment, and bother to vote, so in reality it's only 25% of America that want, 25% that don't want, and 50% whose opinion doesn't count.
  • - 69
flag therealtylerdurden (Nov 16, 2016 at 1:09) (Below Threshold)
 @KeithReeder: Seriously dude? You're a f*cking bona fide dipshit.
  • - 35
flag therealtylerdurden (Nov 16, 2016 at 1:16) (Below Threshold)
 @onemind123: point taken. Regardless, Hillary is a f*cking criminal. Not exactly a model presidential candidate.

Regardless, I forgot how arguing with liberals ALWAYS pans out, and it's always a mess, so I'm just going to ignore this clusterf*ck of nonsense. I hope that you all have a good day. tup
  • + 37
 The election is over, the decision has been made. Can we lay off the political arguing at least until he comes into power?
  • - 49
flag superdez75 (Nov 16, 2016 at 3:14) (Below Threshold)
 @Kimbers: Are you qualified to speak on behalf of the rest of the world? No thought not, so STFU
  • + 8
 @nfstreet4life: where's the fun in that. It's fun winding up right wing conservatives with liberal leftwing ideals. Anyway were all farked as the world is going right wing so all y'all better look after your own shit before someone else (probably a dirty foreigner) steals it or takes your job because you're too lazy...
  • + 11
 @therealtylerdurden: Douche Bag or Turd Sandwich... both leave a sour taste in the mouth.
  • - 8
flag mhoshal (Nov 16, 2016 at 4:21) (Below Threshold)
 @KeithReeder: do you people only get hillary ads over in Britain because clearly you read into media bullsh*t lol.
  • + 8
 @fartymarty: "Douche Bag or Turd Sandwich... both leave a sour taste in the mouth"

Is that the voice of experience, or just conjecture?
  • - 1
 @truffy: Now that would be telling. One must find out for ones self.
  • + 19
 @therealtylerdurden: as opposed to arguing with racist, right wing, religious, nuts?

D - " the earth is a sphere"
R - " the earth is flat "
D - " evolution "
R - " creation"
D - " Planned parenthood "
R - " women don't have the right to choose what is good for their own bodies "

Too harsh? Your right, I tend to be a little too " we need to work together for a better planet " sometimes.......
  • + 33
 @enduroelite: pull yourself together endurolite. If you want to insult people, at least consider your crowd. Nobody on Pinkbike, democrat or republican, believes that the earth is flat. We wouldn't need SRAM Eagle then, would we?
  • - 5
flag TheRaven (Nov 16, 2016 at 7:25) (Below Threshold)
 @enduroelite: It's the same. They are both morons. Both believe they are obviously right just because, and both are essentially looking in the mirror calling their reflection stupid.

Your list illustrates that perfectly, though you give me the impression that you believe that the items on that list marked "D" are obviously right "just because".
  • + 6
 @jorukfundan: We don't need Eagle therefore the world must be flat.
  • + 5
 @therealtylerdurden: shouldn't you be driving a truck and wiping your rifle or something? Is it not ironic for a cyclist to support a party that would rather see all pristine forests turned into to strip mines and coal factories?
  • + 4
 I'm no trump supporter, but seems like you brits are being dicks to all Americans? remember Brexit? not like the Americans had any good option
  • + 1
 @PLMedia: Fair point, that election was the perfect example of between a rock and a hard place. You mention Brexit, it seems to me that some people looking at us from another country assume we all wanted out, not the case. From my point of view it's a disaster, or will be if it ever actually happens.
  • + 2
 @KeithReeder: He would take his hair off and stick it in his pack. Them put it back on at the end of the ride. Simples.
  • + 0
 @PLMedia: can't wait for a Boris/ Trump party. The hair! THE HAIR! Don't worry I found the door.
  • + 2
 I'm no Trump supporter either, but we Americans haven't given a flip about what you Brits think since 1776.
  • + 1
 @therealtylerdurden: hillary got more votes so I'd say more than half didn't want him
  • + 1
 @TheR: Hahah, indeed! (and no hard feelings chaps, we like you as individuals!)
  • + 2
 @multialxndr: Democracy, meet Republic. America is not a democracy. Wink
  • + 0
 @TheR: Not true sir. You should study just a tiny bit of history. Britain alone is the reason that we don't speak German today. Winston Churchill was the greatest statesman that ever lived. Britain stood alone against Germany for nearly a year and a half while the US dithered about remaining in isolation. There was lend lease help from us but Churchill to plead for it, and America being the capitalist types that we are made them pay back every penny which literally took till 2006! Small thanks they got for one island standing up to the mightiest military the world had ever seen and she held her own till we finally joined the fray. The Brits beat back the Vikings after they had taken over 3/4 of the island! Agincourt, Trafalga, the list through history is long and storied. Don't f*ck with the Brits. Makes you wonder about that little scuffle in 1776 doesn't it? Hmmm maybe their heart really wasn't in it. They looked at us here as British citizens and even after independence we were both interdependent on each other for trade. So economically it was of no benefit for the Brits to beat the stuffing out of us. Please read up on this just a little bit.
  • + 1
 @fattyheadshok: Ironically a big reason that independance was gained was due to the support of the French, or the cheese eating surrender monkeys as some may refer to them.
  • + 0
 @fattyheadshok: geez, dude. It's a joke.
  • + 58
 gruppo is a funny word
  • + 10
 Is it pronounced grup-o or group-o?
  • + 47
 @thook: I think it is Grope-OHHHHHH
  • + 58
 @thook: group-o. It's kinda like gelato, but not as tasty.
  • + 2
 What would Trump say?
  • + 6
 @Thustlewhumber: Bad Hombres
  • + 13
 @Thustlewhumber: Grab-Oh-Ye Poosay.
  • + 2
 @Boardlife69: Uge Gina Gruppo!
  • + 50
 Having ridden eagle for a few weeks now I can say its pretty impressive. The gear variety and spread is rad as well as the shift feel. Sadly the price left a burning hole in my wallet.
  • + 3
 Sorry, I meant to prop you up. You said exactly what I was thinking, my local bike shop has some pretty awesome entire bikes for cheaper than this thing.
  • + 0
 I've been loving mine because it suits my local terrain which has long 45-90 min continuous grinds up 2-3k+ ft of elevation then long fast downhills. If I lived somewhere with more breaks in the climbing I don't think I would have sprung for it. I have had a few chain drops which may have been due to me sizing the chain wrong - too bad they say that the fancy connector is a 'one use' item. Added a chain guide and all is good.
  • + 2
 @birdoboards:
You sir like the feathered animals right?
  • + 2
 I agree if you have big climbs eagle is the shiznit!!! I have 1x11 and eagle and I wll tell you there are some technical climbs that I cannot clear with the 1x11 that I can clear with the 1x12. That being said I like it. Granted I push a bigger gear in the front, 34T and sometime 36T. Eagle has been welcomed on the trail bike I don't know about the longer travel bike though I think I will stay 1x11 on that one
  • + 2
 @road-n-dirt: I'd rather ride a PINION.
  • + 35
 A derailleur that sits 3cm lower than an 11spd normally would, sounds like trouble to me.
  • - 4
flag wolf-amongst-lambs (Nov 15, 2016 at 23:30) (Below Threshold)
 No shit. And thats at 42t. Where do you think it sits at 50t???
  • + 15
 @wolf-amongst-lambs: Just a heads up, when its on the 50t the cage swings forward and sits higher than when its on the 42 tooth.
  • + 0
 @gordon2456: now THATS a vid they should include: id like to see that
  • + 3
 @wolf-amongst-lambs: Well they have a photo of it on the yeti, so there's that... No need for a vid lol.
  • + 3
 Wouldn't it be more interesting to see where it sits at when the chain is on the middle-/low-tooth sprockets?
Crushing that pricey derailleur on a rock is far more apt to happen on the way downhill it seems to me.
  • + 1
 @gordon2456: i mean the action. A photo is where it ends up. Id like to see how it got there
  • + 1
 @wolf-amongst-lambs: Quite the imagination you have.
  • + 1
 @gordon2456: its my unrequited dream of being an engineer. I like watching things work
  • + 27
 So in other words wait until the XT Hawk drive train system... got it.
  • + 22
 There will be no such thing because:

1: Hawks are smaller than eagles.
2:Hawks are usually right wing conservatives who resist change (if not through brute force/war)
3: Albatross is the correct one-up on the eagle.
  • + 6
 @feeblesmith: I thought it was Shark?
  • + 17
 @feeblesmith: I'd freaking love it if shimano come out with Dodo 12 speed.
  • + 10
 Shimano XT Condor 14 speed
  • + 2
 Shimano Ostrich!
  • + 1
 @feeblesmith: Albatross! Albatross! Get your Albatross!
  • + 26
 And I'm here trying to convert my bike to 7 speed...
  • + 1
 I caught myself wondering if they were gonna make an eagle dh group (somehow)
  • + 12
 3 ring crankset, outer replaced with bash guard, inner replaced with a disk of aluminium to keep the chain on. 7sp rear cassette from 2005-ish and an 8sp shifter with the deadstops on the mech keeping it out of 8. I get teatnus just thinking of what I ride.
  • + 3
 I'm calling it now. They start going to fewer gears with the same range. I'd be totally happy with a 10x42 9-speed.
  • + 19
 Loving that videos are being added to reviews. Even if it's just hub noise or shifting.
  • + 13
 It's got to be cheaper to maintain and operate a helicopter than keep this drivetrain in proper operating condition, given the price of the consumables (cassette, chain, chainring).
  • + 1
 I dunno... Last time I checked you couldn't operate a helicopter for more than two hours before you'd exceed the price of this entire drivetrain.
  • + 6
 You can keep a cassette going for a long time by religiously checking and replacing chains (my X01 cassette is going on 2 years, with chain replacement every 4-6 months). But at $85 a pop for a 12 speed chain, that's not even a good option.
  • + 18
 I work as a helicopter mechanic.. We budget roughly 500k per machine per year. I just replaced 12 bolts that were 10k..
  • + 2
 @DMal: do you change the change at 0.5 or just before 0.75? I run X01
  • + 3
 @seamus: I replace the chain the second it hits 0.75.
  • + 1
 @DMal: No, the better option is a Pinion. Chain will last a long time with these puppies.
  • + 12
 I personally don't see the need for eagle, especially with these crazy 11 speed cassettes comming out (9-46 range...)
  • + 8
 @bridgermurray Exactly! Has anyone got real world experience with the latest e13 TRSr 11 speed cassette?

It's got even more range than Eagle, and you don't need longer a longer derailleur, new shifter and a crazy expensive chain...
  • + 4
 Ditto on E13 9-46 feedback...anyone been running for a while?
  • + 3
 e13 9-46 isn't available to the public yet- mid Janurary release timeframe.

I've been running their 9-44 11 speed & 9-42 10 speed on two different bikes though with good success.
  • + 2
 @ninjatarian: smooth? relative to ordinary Sram 1x11 cassettes?
  • + 2
 Yeah, my ultimate fear of Eagle is chain slap and more important blowing up the larger derailleur. It is already a worry with my x11 drivetrain, and after replacing one xt derailleur (a mere $70 compared to that thing listed above), I can't imagine replacing an eagle one.

I plan on going 11-46 after having 11-42 and enjoy the cozier bailout gear.
  • + 2
 And the fact that the new E*13 cassette is going to retail at $350 and will work with existing 11speed components why would you wanna shell out three times as much for eagle?
  • + 9
 Nr of teeth on the rear cog is the new megapixels. Sorry guys... I bet someone will make even bigger cassette/cog and there will be people raving on how great it is. The moment XX1 was introduced I smiled and thought front mech is finally dead. The moment eagle has been introduced I thought, front derailleurs were actually fine...
  • + 9
 Not retightening the derailleur to the frame every other ride? One XTR and one XO1 drivetrain being posted in the classifieds.
  • + 1
 The SRAM b9 bolt and derailleur has been updated on their 1x11 as wel (XX1 for surel.
  • + 11
 A drop of loctite fixes that right up...
  • + 3
 @TheDoctoRR: Ya but only if you realize what was happening and I don't think its something that people reasonably look into. I'd been riding on a 9spd shimano set up for 5 years without ever encountering that phenomenon so why would I think its happening now? Had me scratching my head during a ride when my indexing kept going out of wack.
  • + 1
 @freestyIAM: It has been a chronic problem from the beginning that folks should check before every ride - I did a 2hr race and thought the rear suspension linkage was coming off...it was actually the derailleur backing out (and the B bolt had loctite the day before). Most 6" travel bikes have a ton of movement and torq at the rear pivot(s) and between the rear and front triangle. If you have binding between the B bolt and derailleur it will loosen when the rear suspension moves throughout it's travel. Solution: Don't over torque the Bolt, add loctite to the threads and clean / carefully lube the area where derailleur rotates around the bolt as the suspension moves.
  • + 1
 @freestyIAM: you are absolutely right, I learned the hard way myself. I was riding whistler and couldn't figure why no matter how much I screwed with the barrel adjuster my shifting was always all over the place. My bolt had backed out far enough that the b-screw mangled the dropout quite badly.. I was only a thread or two from losing the derailleur altogether... Ive been quite happy with SRAM since changing over from Shimano but this bolt backing out scenario seems to be a major engineering oversight (till now).
  • + 10
 XT 1X11 $330, delivered to your doorstep.
  • + 5
 I wouldn't mind owning one to be honest. I am also a SRAM fan. But hey, with 1,200 I can upgrade, say, to Crossmax wheels, fit in XT brakes, get a carbon handlebar, buy a Hope crank and go for a couple of beers. Just sayin'... - I also run 1x10 and I am having tons of fun.
  • + 5
 I live in a hilly place, Tasmania to be exact. Few bikes in the garage.

I have 1 X 11 and love it. The range does limit where I can go, however, so I don't even go to those places anymore.

Now I say, "My 1 X 11 is great for everything I ride (because now I have to ride where it works and not where it doesn't.)

Let's be honest, Eagle will still affect where we can ride and where we cannot. Just less so.
  • + 4
 Have just worn out my SRAM X01 chainset after two and a half years. It was just the biggest cog (easiest gear) that finally started slipping and prompted me to replace it all. So great longevity, but for several weeks until I could actually afford the new chain ring, chain & cassette, I just kept on riding but not using first gear. And what do you know, all those climbs I used to do in first (which caused it to wear out eventually), I could manage just fine in second. So the extra gear range on Eagle is probably great, but is it actually just something I don't really need. And yes, it's plenty steep here on the South Island of NZ!
  • + 2
 That just happened to me on a 3 year old XX1 cassette. I got a wolftooth 44 cog, new front chainring and chain. No need for a 50 cog out back for me now.
  • + 4
 Armchair engineer thought of the day:
This mambo, heavy, cassette should be placed on the crank, and used to drive an idler shaft placed above it, that drives a high level chain line to the wheel.

Other thought for the day: Still WTF, Trump? Really?

But back on the crank cassette thing. We need a custom frame shop to try this out!
  • - 8
flag mhoshal (Nov 16, 2016 at 4:32) (Below Threshold)
 So you support someone who supports pedophiles than is what you're saying?!? Good on you there buddy!!!
  • + 8
 @mhoshal: No, you've lost me there. That's not a pro Trump comment is it? Did you hit your head hard this year?
  • + 4
 @Mojo348: i thought the Swiss were neutral to world affairs
  • + 1
 The answer is a Pinion gearbox. Let's not overcompilcate the problem here.
  • + 7
 Who am i? im just a mountaibiker on polygon bikes with 9X2 speed
#retrostyle Big Grin
  • + 3
 I run slx 2x10 and don't plan on changing it anytime soon as I love my 2012 Reign and don't wanna upgrade until I break the frame
  • + 1
 @mhoshal: wow reign is still BADASS frame bro Big Grin
  • + 4
 So how many people that have switched to Eagle think it is worth it? Personally, I hope they come out with a 10/48 option for those of use that want slightly less range and even a 10/45 for the gravel bike 1X crowd.

Sram thanks for pushing the envelope!
  • + 2
 I love it. These guys just love bitching for no reason
  • + 6
 I will wait Sram Hawk with 1X13 and a 60 cassette will have a correct range or gear for climb my downhill bike.
  • + 2
 SRAM Albatross.

Its going to be HUGE (he said like a Drumpf)
  • + 3
 This place cracks me up. You whinge about having this much range (and also oddly like to say that you will still have fun with less gears . . . Except nobody is saying you won't are they you idiots), yet drool over whatever other new piece of technology comes along that can make your riding a little more pleasurable, all the while probably 90% of you are riding on an extended range cassette anyway.

How dare this get a good review! I mean it's not like it could possibly be any good could it. It costs too much (that's all relative by the way, what you mean is it costs too much for you to justify it, big difference). 2X9/2X10/3X9/3X10 are just as good . . . Except they're not, and you know it. More parts to go wrong, more weight, more faff, looks like shit. 1X10 works fine I don't need this . . . Don't buy it then, pretty bloody simple.
  • + 3
 It's the chainring that's stopping the grinding noise in the mud. I'm running the cranks and chainring on an 11 speed KMC chain and XT cassette. Had a few really muddy rides with it and it's pretty much silent, definitely no grinding going on. Not sure how long it will last as the chainring wears though.
  • + 4
 I still get the feeling that the industry has not already explored all the possibilities of 11 speed. The 489% range from E13 makes Sram's eagle somewhat questionable as a pertinent upgrade...
  • + 3
 Or 500% range from OneUp's 11-speed Shark setup.
  • + 2
 Great review! I like that you didn't spend the whole time talking about the gear ratio, which we seem to get sucked into, and also focused on the little things that make the entire gruppo better. I think it's those little improvements and the reliability that make this a good choice for a top end gruppo. Also for all the people saying it's too expensive, I just added up what XTR 1x costs, and came up with $1139 MSRP for the rear derailleur, cranks and chainring, shifter, cassette, and chain... so ya pretty in line with Shimano's top offering.
  • + 1
 The problem is that we don't pay MSRP. We pay what dealers charge. And XTR is now at the $600 level while Eagle cannot be found for under $1000. So yeah not even close.
  • + 2
 I'm still lovin on my Shimano "blend" 1x10 with a Saint Shifter, XT cassette, old XTR cranks, RF NW ring and recently added M8000 derailleur. I've demo'd XX1 a few times (can't imagine Eagle's that much different) and it's nice, but I see no reason to move to more range (Shimano or SRAM) for my riding. That said, I'm stoked SRAM pushed to 1x12, because....errrr....certainly....12 has to be the end of the line for 1x range, riight??? And the next drivetrain innovation from the big guys has to be something better/different than adding another cog??? I'll just stay 1x10 till that happens unless the marketing gods successfully brainwash me sooner Smile
  • + 3
 My Kona process came with an x1 drivetrain, I think when the chain wears out I will just switch to a shimano xt 11-46t cassette and change the freehub body. SRAM cassettes are insanely expensive.
  • + 1
 A- the price.
It is new & shiny but I can kill a drive train in 3 months of solid winter riding here in the UK if the conditions are right.
That would be expensive riding.
I could always not feed my son & not pay the mortgage or feed the family & then I could afford to run eagle.
Mind you we only have a few small hills in the southeast so it could be slight overkill.
11-44 praxis with superstars 32 on the front has got me through/up Welsh mountains so far & if I got around Penmachno on this set up ...... why do I need to change
  • + 3
 finally there´s 12 speed drivetrains at good prices... so the price of 11 speed sets will drop, and i finally can buy a 10 speed drivetrain!!
  • + 1
 "The price is fairly high at the moment, but don't forget, this is SRAM's top-of-the-line gruppo; it's not a stretch to imagine that more attainable options are in the works"
When 'training' the Jenson peeps on their new 12-spd, SRAM instructed them to tell their customers that there will be NO lower priced 12-speed(Eagle) groups
  • + 1
 I own the Eagle X01 now and have to say, very impressed and the bail out gear is really nice to have. I've been able to topple of few inclines that have been a bitch in the past. Each to his own as for upgrading. If it's a matter of enjoying your "drug of choice" mountain biking, then upgrading may not be given as much scrutiny. Watch the prices come down over time and watch for everyone to offer something similar. What I really enjoy more is the people getting by on pennies with older Drivetrains and combos... Probably just as happy if not more satisfied. Oh well.
  • + 5
 how many km did u put on a chain?
  • + 5
 And for the same price I can buy XTdi2 2x11.
  • + 2
 I see this is my future mega-drivetrain upgrade. If I was going to drop that much cash I don't want that longer derailleur and would rather be at 1 shifter still and be able to program shifting to shift according to gear ratio on a 2x11. Until then, I'll be on my XT 1x11.
  • + 2
 You're absolutely right, and it's a good option. To each their own though, XT di2 especially 2x11 with the front derailleur is around the same cost as Eagle.
  • + 2
 Another thing with a 2x11 is I can have like a 38 tooth big ring and a 28 small and then I think I'd have more range than a 1x12 with a 34 tooth
  • + 1
 I have been riding the new setup on my Trance Advance O. It is a great setup. On really steep climbs I was able to clear some sections that I normally would have to walk. Understand that that is about .5% of the riding. I think 1x11 is just fine. If you can afford the upgrade it is a nicety but not a necessity.
  • + 1
 @mikekazimer - re back pedaling... - On my Process 111, no matter what I do to the chain line (been playing with washers to push the chainring closer to the frame), I can't get out of that problem. There are geometry limits - the chainstays are short (hallelujah!), and they need to have enough clearance to fit beefy tires, and that limits how far in the chain ring can go, and that in turn means it's impossible to keep the chain from moving to the next cog when backpedaling on the biggest cog. For bikes with similarly short chainstays and decent clearance for big rubber - what have you seen that solves this problem in terms of how chainstays are shaped?
  • + 1
 We have fixed that for you. It is called a Pinion gearbox. Never had a problem since.
  • + 4
 XT 11 speed groupset (without brakes) is $350 US.....Enough range for anyone....Japanese technology.....easy decision.
  • + 1
 11-36 with a 34 front on my trail bike and have ridden up some pretty big hills.....was riding behind some people up some pretty steep sections in wales and had to stop as wasnt wide enough to pass and they were using one of these crazy big gears to go up at a snails pace and i simply could not go that slow without trackstanding and stop starting in sections which didnt work great. but hey whatever you like and works for you is fine i just need to look out for riders with this setup and remember that if there isnt room to pass then give them a little more time to get up the hills. of course if they would let me pass before they engage stair-lift mode that would be nice too.
  • + 1
 Just bought this kit on my new 2017 SC Bronson CC X01. Problem is the crank arms have a X1 sticker on them. Everything else is Eagle, even the chainring. They appear to be carbon. LBS thinks it was a mix-up with stickers, as there are no carbon X1 crank arms. Anyone else have this issue or heard of this problem?
  • + 2
 Good chance that's a SC special w/ SRAM to keep the costs at point. Either not yet publicized or just not hyped up. What did the build say?
  • + 2
 @truckeetrash: the website says X01 with a picture of an X01 Crank on the build. Can't figure out how that sticker ended up on there because the true X1 crank is painted on as opposed the clear sticker.
  • + 1
 1 x 10 good, simple, and cheap, has the possibility to change for bigger or smaller crowns and, does not have that bug when we turn the pedal in the opposite direction, which I'm sure the eagle but nobody speaks.
  • + 2
 "What about backpedaling? It's no secret that on certain 11-speed drivetrains, and depending on the chainline, riders have reported issues with the chain dropping down the cassette when they backpedal. I made a conscious effort to backpedal more than usual when I was riding an Eagle-equipped bike, and in all instances the chain stayed in place. This was the case on multiple bikes with various chainlines and rear axle spacings."
  • + 2
 @Mike Kazimer: Thanks for the review. Perhaps a follow-up review could include a strength test of the Eagle chain vs 11, 10, 9 and 8 speed chains to validate SRAM's claim?
  • + 3
 id like to see a comparison of cassette and chain lifespan. 8spd vs. 9spd vs 10spd vs 11spd vs 12spd
  • + 0
 e13 cassettes with the 9-46 are the way to go. 50 tooth cogs are ridiculous. You can only gear a bike so low, you might as well get off and walk. I actually found with a 30t chainring and the new massive cogs on the rear that you spin away all day and never get anywhere. shift to the 36t cog and it was a bit tougher but you also climb way faster instead of just trying to spin fast enough to keep some balance. Run smaller gears in the back, smaller chainring in the front, more clearance at the BB, and less drivetrain wear with the same gear ratios?
  • + 1
 12 speed 10-50 is really kind of silly, especially because of the longer cage derailleur ... eleven speed 1142/1042/1146/ (and don't forget the 944 from e-thirteen) are better and cheaper options.
  • + 2
 @mikekazimer do you mind sharing your experience with xm481 rims? Just building a wheelset and it's on top of my list but can't find any reviews.
  • + 2
 So far so good - I've been on them for about a month now without any issues. They're nice and wide, and it was super easy to set them up tubeless.
  • + 1
 @mikekazimer: great, appreciate your feedback.
  • + 4
 I need a $1200 12-speed drivetrain like I need another hole in my head.
  • + 1
 @masonstevens: You already have one hole in your head? You'd better get that looked at...
  • + 2
 @TheDoctoRR: I have, the dentist tells me that its called a mouth and I shouldn't be alarmed. Turns out they're pretty common.
  • + 1
 A question that is just in the ball park, XT Di2 has been noted as cheaper than the Eagle in the 1x11 config... can you run non-Shimano expanders (OneUp etc) with the 1x11 Di2 ? could be a game changer.........
  • + 1
 "The B-knuckle (the portion of the derailleur that's threaded onto the hanger) has been tweaked to help keep the mounting bolt from unthreading itself.

Most important part of this review. Sorry Mike.
  • + 1
 I'm with you - it's a welcome, and needed change.
  • + 2
 Now they need to make a shifter that can change more than one gear per click. Shifting from low to high takes forever compared to shimano.
  • + 3
 I was thinking that too...why do we need to be able to skip FIVE gears down? That's a HUGE range drop on a 1x drivetrain, and I can't see how it wouldn't be more disruptive than helpful. Why not take two of those clicks and add them to the upshift? Skip 3 down, 2 up. Alot more useful.
  • + 3
 @TheRaven: Because going from high to low, means you're going uphill, if you have a sudden shift from downhill to uphill you really need to shift fast or you stop and have to push your bike. The opposite way, low to high means your going downhill, and you can coast while you shift so the speed is not nearly as critical.
  • + 2
 @tgent: I agree with the downshift part. But what I was getting at is that with 1x the spreads are so much wider, dropping three cogs is all the range you could possibly need for that emergency climb...dropping five is such a jarring leverage change that you will likely end up walking anyway.

What I don't agree with is the upshift part...I absolutely need to skip upshifting because I don't get to coast all the time on my downs. I have lots of very technical descents where I only get occasional VERY small windows in which I can shift, and transitioning from a climb to a descent often means i'm 3-4 gears too low when I hit the descent. With Shimano's shifters I can bump up 2-3 gears in one swipe, which means I can get my power back alot faster than I can with SRAM.
  • + 1
 Am I trying too hard to climb if the lowest gear I have is a 34t chainring with a 25t cassette? Or should I just cough up the dough and upgrade to sram eagle on my cx bike lol
  • + 2
 So what's the impact of the chain line getting worse then? Is there meant to be a limit of what is acceptable from that perspective?
  • + 1
 If the chainline gets too bad, SRAM will simply make a wider hub - easy!
  • + 4
 Two words: Too expensive.
  • - 3
 XTR is almost the exact same price... being too expensive is fine, but it's not like it's out of bed with other top end drivetrains.
  • + 5
 @tgent: Uhh what? Complete XTR 1x11 (Shifter, Mech, Cassette, Chain, Crankset) is about $600. Not even close. I think Di2 is close to Eagle...but not mechanical XTR.

That said, Eagle is currently the ONLY 1x12 drivetrain available, so there is that fact to support it's price.
  • + 0
 @tgent: That extra cog is worth a shitload to some people.
  • + 1
 Who pays full retail prices? Negotiate...
  • + 5
 I can buy this chain
  • + 1
 Thanks for this very good article.
Just 2 questions : what are the differences between the X01 and XX1 release ?
Is that a Yeti SB5 you are currently testing ? Looking forward to read that review !
  • + 2
 X01 is enduro approved, xx1 for xc and a little bit lighter, and golden
  • + 1
 For the trigger, X01 has alu, XX1 has carbon.
If you take the derailleur and K7 they have equal specs. Therefore, why is there any price difference, what are hidden tech differences ?
I remember that, if I’m not wrong, with the 11v release, the X01 K7 had a better coating for similar weight. XX1 shifter used bearings providing a smoother experience. I just try to challenge if it makes sense to pay extra for the XX1 Eagle version.
I just try to figure out, what's pure marketing and what really brings an advantage...
  • + 2
 I am pretty sure xo1 cranks have a foam core instead of hallow for more strength than xx1
  • + 2
 A silky 1X drivetrain that I can use to climb a singletrack wall after 5h, AND hang in a gravel paceline at 45km/h. Sign me up.
  • + 3
 If I were to sell a kidney, i would still not have enough to buy XO1 eagle and lacking a kidney
  • + 2
 Seems to be a good drive train if you want to climb a vertical wall but possibly uneeded.
  • + 5
 Or you use a bigger chainring and can pedal higher speeds.. Somehow I have the feeling this was said like 500 times already though so you might have heard of it Smile
  • - 3
 @daweil: what do you think: how many riders in the world ever run out of gearing while riding down a trail with 36t chainring up front?
  • + 4
 @WAKIdesigns:
A question bearing NO relevance to the comment you're (over)reacting to...
  • - 2
 @KeithReeder - it bears relevance but you are too smart to pay attention to it
  • + 2
 @WAKIdesigns: I was on a 1x11 with 34T and 11-42 and have had this happen a few times. It hasn't warranted a change to my drivetrain, though, as when it happens it has been more of the "well, better stop trying to pedal so hard and ride smoother to get the speed I am after" especially since it is generally relatively short sections of the ride.

I am going to an 11-46 cassette soon but think I will keep the 34T anyway.
  • + 3
 @cgdibble: I have 36t front and 11-42t rear, and since I know I am no fitness god then I am either a freak or just a perfectly normal person with low cadence genetical/trained preference. What you will hear though when you raise the issue is a couple of freaks from the other side of the spectrum: guys who like really high cadence. And high cadence is the dogma that is hard to punch through. It comes from roadies climbing Mount Ventoux (yes I exaggerate but it is fkng roadie pseudo science applied to MTB). Yes it is possible that some people need 32t for 50t rear but that's a rather small chunk of population, probably as small as people like me, who used to pedal 1:1 ratio on 26" wheels. What you won't hear here, or anywhere, is perfectly normal people who sit somewhere in the middle of the prefered/personally favorable cadence spectrum. Eagle added the buffer for people who want something on top of what was available. Eagle caters to the same sort of mentality, which make you look at a shelf with tooth paste in a mall and think that this one in a bit bigger tube is better, because it says: 25%more for the same price. It is bollocks, but some people do feel great about it.
  • + 2
 @WAKIdesigns: daweil is saying that if you're using a 32t on 1x11 and go to eagle and run a 34t, you'll have the same low end and more top end... No one is saying they are out of gearing while on a 36t 1x11 setup, they're saying (and I agree) that they are running out of gearing on a 32t 1x11.
  • + 0
 so... basically a person is a relatively high cadence bloke since he spins 32t to 42t rear, buuuut suddenly he is a hard stomper when it comes to 32-11...mhmhmhmhm it is interesting how muscle structure and neurology (factors steering your prefered cadence) change depending on pitch of terrain. Uphill: roadie spinning circles Downhill: velodrome master. fascinating indeed. We completely omitted wheel size, crank length, tyre weight, altitude, outdoor temperature. One thing is sure. More is always better and here Eagle just wins. You know just in case, that one climb I know, one out of 213947 in my area - I wish I had a bit more range there
  • + 1
 @WAKIdesigns @keithreeder thanks for joining in. I recently switched to slx 1x11, using 32 front and 11-42 back. It's barely enough for the uphills (maybe my fitness really sucks that much, my typical ride is twice per week 30km and 800 ascent/descent, about 2-3h) and when there is a downhill on a pedalable surface I spin out after like 40kmh. Never could I use a 36 up front, at least not more than a few meters. Yo low cadence waki, can you teach me how to or at least how to train for it? Big Grin because that would just solve the problem.
Can't say if I'm a high or low cadence person, I use what feels right, but with 2x10 I had a bigger range and I used it regularly. Anyways I don't regret going to 1x11, because I'm usually not in a hurry down asphalt roads and the always advertised advantages are stronger for me. If I had the money I would just rather bought eagle, use a lets say 34 and still have more top speed.

And I actually just checked ritzelrechner.de, with a cadence of 75, which is not -that- high you get from about 4 to 30 km/h on 650b and a 32 chainring. And I certainly am slower than that on a tight uphill
  • + 1
 @daweil: Yup some people need the range, some don't. I've got 11-45t with a 30t up front on my 29er trail bike and it's JUUUUUST enough on both ends of the spectrum. Meaning every now and then I could use a lower gear or a higher gear, but 95% of the time, i'm covered. Keep in mind i'm also a 200lb rider who rides with a full pack (i'm the mechanic of my regular group). A buddy in the same group is 160lbs and less fit than I am and he can ride the exact same trails with an 11-36t cassette.

Nevertheless, as rear cassettes keep getting bigger, the haters will continue to hate.
  • + 3
 Who came up with this name? Should run for president!
  • + 2
 "it feels almost exactly like an 11-speed XX1 drivetrain, except that there's now one more click."

nuff' said.
  • + 1
 SRAM Eagle Drivetrain = $1193USD x 1.33 = $1,586CAD divide by 365 days in a year = $4.30 per day

Starbucks, lunch, craft beer, movies, girlfriend...............gone!
  • + 1
 Coming off a 1X9 now to a 1X11 -Shimano transition of course- I've noticed I still spend 95% of my time on my 9th cog still lol.
  • + 2
 So is there anything to the new chainring? More or less durable than last iteration?
  • - 1
 @mikekazimer I see proofreading isn't pinkbike's strong suit.

Also; unsure if X.01 Eagle is 11 or 12 spd??? Razz
"The shifter keeps the same familiar SRAM ergonomics, but of course, there are now 11 clicks."
  • + 6
 If there were 12 clicks it would be a 13-speed drivetrain - there's no click for the gear it starts in.
  • + 1
 @mikekazimer: Mind. Blown!
  • + 1
 i normal climb by pushing the bike with my feet on the ground. Big Grin , can i fly if i convert the gear with eagle.
  • + 1
 "this [X01 Eagle] is SRAM's top-of-the-line gruppo"
<cough> XX1 Eagle </cough>
  • + 2
 Will older 11 speed rings work with the 12 speed chain?
  • + 2
 I know for sure that OneUp's existing rings work with a 12-speed SRAM chain.
  • + 1
 I wonder if XX1 and X01 eagle will directly replace or be a wider-range option for the existing XX1 and X01 drivetrains.
  • + 2
 BTW 12 CLICKS ON THE SHIFTER WOULD MEAN 13 GEARS!!!
  • + 1
 Any sign of premature chain breaks? I've heard about a few but can't determine if its 'typical' or due to new designs.
  • + 1
 Still rocking a Shimano 1X10, and Guide brakes are how you find the s3cret track kids, listen up honk!
  • + 1
 Nice review! I'm seriously considering dropping my 11 speed for this now Big Grin
  • + 3
 2x10 here.. man im old!
  • - 2
 I would buy an e-bike before I buy Eagle 1x12. Last year I bought an XX1 drivetrain, the chain lasted 1 month and now I have nightmares about replacing my cassette. The price of the xx1 cassette is still crazy after years on the market, I believe the Eagle drivetrain will never be affordable.
  • + 1
 Is there a 12-speed drivetrain in your future? Is there bolloks
  • + 1
 i think there needs to be 15-speed
  • + 1
 Reason for 1x12........ Bigger chainring in front!
  • + 0
 Sure you can run an existing Sram 11-speed chainring on an Eagle setup, just wait until they wear out.
  • + 1
 Seems to be view of absoluteblack
  • + 1
 And now we want a all black cassette! The silver 50t is fugly!
  • - 1
 10sp 36t up front & 11-36 rear. Guarantee i will out climb most of you lazy shits!! Who the hell would pay more for a cassette than the shifter & mech combined?
  • + 1
 Come on out and visit. I've got some hills to show you.
  • + 1
 @mikekazimer: I live in Scotland plenty hills around. 25° is fine
  • + 0
 I have an eight speed in the back .two up front. Thats 16 speeds! Ha take that Sram. Lousy 12 speed.
  • + 1
 Fuck me you can buy a steel rigid singlespeed for that price. Wankers.
  • + 3
 Actually, since there's no much discounting on SRAM components, but quite a bit of discounting on complete bikes... MSRP on a brand new alloy Honzo (complete with 1x11 SRAM NX drivetrain, and a Recon Silver up front) is $1,599. Which means you can get last year's Honzo for about as much as the MSRP on the Eagle drivetrain reviewed here.

And that both validates your disgust with the price of this, and points out that it's completely irrelevant. Nobody is forcing you or me to buy 1x12. But the continuing pissing match between SRAM and Shimano keeps making the stuff that you or I might buy (like an NX or GX or SLX drivetrain) better (both in performance and in value) over time.

Unless that steel rigid singlespeed is a religious thing, in which case that's not relevant for you.
  • + 0
 The cheaper Eagle RD is already in the field. EX1
  • + 1
 make murica great again
  • - 1
 Am I the only one who still doesn't get the description of SRAM "trigger" shifter?
  • + 1
 It's just you.
  • + 3
 "Am I the only one..?"

I doubt anyone here is equipped to answer that...
  • + 0
 There are 11 clicks on the shifter.
  • - 9
flag cgdibble (Nov 16, 2016 at 7:01) (Below Threshold)
 ha I notice that, too. $1200 and doesn't even have enough range in the shifter to hit the extra cog! Typeos are awesome.
  • + 3
 What are you two taking?
  • + 5
 Haha...maybe try using your fingers to count...from 1 to 2 = 1 click, 2 to 3 = 2 clicks, etc...until you get to 12. I think you may find that you only need 11 clicks to span 12 gears...in fact the number of clicks (shifts that is) is always the number of gears minus 1.
  • + 2
 @AaGro: haha derp derp derp!
  • + 0
 For that price..... I'll buy heroin first
  • + 0
 ''EAGLE!!!!!'' -J.D. in Scrubs
  • + 0
 I love my American Freedom Eagle drivetrain!
  • - 3
 11-23 is my favourite cassette, 9 or 10 speed. That's what I've been running for 15 years now and I get up most hills. 38t on the front or 44/36.
  • + 3
 @turbohippy: By hills do you mean the slight incline to the chairlift?
  • + 4
 when you say you get up most hills you mean pushing right? if not you are a superhero.....i run a 11-36 on a 34 front and have ridden some pretty steep and high climbs but wow would never try it with a dh cassette and a 38t front ring. Fair play though im just glad i dont ride with you as i would feel very depressed seeing anyone power up hills on that setup. I could manage that setup on my locals trails but if i go anywhere with decent long climbs my knees would explode.
  • + 1
 @rabidmonkfish: I rode single speed for a couple of years so now I try not to use lower than 2:1, I get up all the hills in Wales just fine.
I do get the feeling that I piss off most people when I leave them on the climbs, gives me a chance for a smoke at the top.
  • + 1
 @turbohippy: I suggest you contact one of the pro teams,get some gold medals
  • + 1
 @lenniDK: if I was 20 years younger and could be bothered, maybe I would. I race my local xc and dh, I've had a few second's in xc and I'm usually mid field for dh.
  • - 1
 The Eagle is fading. Into the past.
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