Same Technology, Less Money
SRAM's XX1 group certainly had its doubters when the single-ring drive train was released around this time last year. Skeptics questioned its gearing range, saying that it wouldn't be wide enough for all but the fittest riders, while also scoffing at SRAM's proposal of riders using it without any sort of chain guide. Some quick math, along with a year's worth of testing, has us believing in the gearing - so long as you are honest with yourself regarding what chain ring size you should be using - and it took only a few rides until we were convinced of the group's chain retention abilities. After years of riders struggling with chain guide setup and reliability, it admittedly felt oh so wrong to suddenly be told that we no longer needed to use one, even on rugged terrain. The proof is in the pudding, though, as XX1 was, without a doubt, our top gear pick for last season. How can SRAM top it? Offering the same technology at a lower price would be a good start, wouldn't it?
| Details • Single-ring, 11spd group • 10 - 42t cassette • X-Sync thick/thin chain ring tooth profile • X-Horizon clutch-equipped rear derailleur • Optional chain ring guard • 94mm crank BCD • Smallest chain ring available: 30 tooth • Carbon crank (al. version to come) • MSRP: $1,273 USD (starting price) |
Although the group carries a starting price of $1,273 USD, you can expect the street price for X01 to be slightly lower, even if its MSRP is is still just a few hundred dollars less than that of XX1. With consumers asking for a much more affordable single-ring, eleven speed group, why is there such a small relative cost difference between the two groups? The answer lies in what bike manufacturers pay for the components when they are spec'ing next year's models, with the cost difference at the original equipment level being much, much greater than what we see in the aftermarket. And although no one is willing to discuss how much manufacturers pay for XX1 and X01, it likely isn't out of line to assume that it could translate to $400 or more on the price of a bike. Given that the two groups appear to be so closely related, how was SRAM able to offer cut costs? The answer lies in streamlined manufacturing processes that save time, and we all know that time is money. Small machining and finishing details throughout the group add up to only the slightest of weight penalties, with the cassette weighing just fifteen grams more, the derailleur ten grams, and the cranks only five. All told, there is only 30 - 40 gram difference between the two groups. So, while it may seem that X01 isn't much different than XX1 when it comes to price and weight, the real story is how SRAM has been able to bring the system's technology as a whole to a much lower priced complete bike on the showroom floor. Yes, we'd likely spring for XX1 if we were to buy a complete groupset, that much is pretty clear, but we would choose an X01-spec rig if buying a complete bike as it would either cost much less or feature upgraded components elsewhere.
X01 On The TrailLast year, nearly to the very day, we put our first ride in on the debuting XX1 group. That ride began from the top of Whistler and took us down part of the freshly built Top of the World trail before ducking into the trees to sample Khyber, Business Time, and everything in between. Not coincidentally, we kicked off our time on the new X01 group on the very same Top of the World trail after a long ride in the gondola before a short hop on the final chairlift to the summit. Our route back down to the valley floor would include a much rougher than expected Top of the World (
the Enduro World Series race went down it the day before... twice!), the natural roots and rocks of No Joke, into Too Tight, Angry Pirate, and finishing it off with Heart of Darkness. Not only was it pretty much the same course that the EWS took down the mountain, it was also a muddy and rough first date with X01. Just the way we like it.
One ride, regardless of how rough the terrain is, can't possibly prove a component's durability to us, but it certainly can serve as an intro that can give us enough information to report back. And although a "First Ride" impressions piece can sometimes come off as a bit banal and inconclusive, there are certainly nuggets of information that can be gleaned from a single proper ride. In this case, that bit of info is that X01 performs very much like XX1 in the short-term, so much so that we would be hard pressed to tell the difference in a back to back blind test. While this might be a let down to some who were hoping for a night and day difference between the two component groups, it really shouldn't come as a surprise as both XX1 and X01 share the same design ethos and technology. That means that the shifting feels the same - tactile and positive, and that chain slap noise was near non-existent. XX1's incredible chain retention abilities are also found on X01, with the clutch derailleur and the ring's X-Sync tooth shaping keeping the chain on the ring regardless of how rough the trails were, despite our 150mm travel Lapierre bike not running any sort of chain guide. And with Top of the World in much more rugged shape than last season - check the photo at right - it is no small feat that the system as a whole is able to perform so well.
The bottom line is that, at least at this early introductory stage, X01 performs every bit as well as XX1. Its shifting feels as precise, the system can boast of the same chain retention abilities, and it weighs in at just 30 - 40 grams more when both groups use their respective carbon cranksets. Comparing MSRP pricing reveals just $176 USD between the two groups at the retail level, and we would have a hard time not convincing ourselves to splurge a bit for XX1 over X01 if building a bike up from scratch, especially due to the ceramic bottom bracket that comes stock with the more expensive group. As we've stated both earlier in this piece and in a previous article explaining X01, the strength of the group lies in its lower cost at the original equipment level, largely thanks to more efficient manufacturing techniques. This means that consumers will be able to purchase a 2014 model year bike with an X01 group for much less than if that bike had come with XX1, simply because the savings at the OE level are multiplied by the time the bike reaches the showroom floor. Said bike could be hundreds of dollars
cheaper, or it might come with a dropper post in place of a standard post, or maybe even upgraded wheels, but in the end we are getting XX1 technology for less money. The next step will be for us to put some serious miles in on our X01 test group to see if the components perform as well over the long haul as they did during out first ride on them.
Seriously, that is all you need to do Shimano, MAKE A WIDER RANGE CASSETTE (and if it needs it a redesign of your der to work with that kind of range)
PS and before you jump all over it i know after market companies make a 3 sprocket kit that does this, but i was talking about what SHIMANO's answer should be to this ridiculous XO1 drivetrain.
How much compared to time spent in front of TV and computer every day? Just get a good training program, for instance one from James Wilson.
Having said that I do realize (and this is the second possibilty) that certain people's Egos will light up when called or proven... Weak due to lazyness. And that is the case here
its a bit like tv's before remotes. it worked fine getting up and changing the channel, but a remote requires less effort to do the same job
www.pinkbike.com/photo/9823491
2: click the little arrow at the end of the result title you want and click cashed
If I were Shimano I would release it from bottom up, or middle up. I would make a 10sp 11-42 SLX cassette at max 400g and around 70$ then according SLX rear mech without increase in price. That would be the end of aftermarket sales for X01 and XX1. Only the "+7000$ bike" buying force would buy it, there would be no sense to send it to shop shelves, only to bike manufacturers. After a year or two, you release XTR at much lower weights and regular XTR prices.
Yep WAKI, that could jus be made for Graves alone. But with the article being withdrawn, I wonder who would have put this pressure on Pinkbike: Graves to avoid causing damage to his sponsor, or Shimano wanting to keep something more or less secret? We'll know sooner or later.
As for the RAD stickers I was not talking about DH at all. Unless you know some WC riders using a 34 on their rig.
Read slower, wait, and then answer. Have a nice day Waki.
But I'm just in Switzerland for 3 weeks, and I really wish I had something like XX1 or X01. I don't want to go back to two rings up front, but the climbs are just too long and steep for my 33/36 ratio :/
I used 32x11/36 in mountains with 500-700m climbs, I climbed 1500m that day (which is off course far from impressive) - just as I used to ride there on 2x9 years before, when I had no idea about training. All I can tell you is that if it gets steep enough for a longer period of time you won't save much energy by cranking lower gears, you will only prolong the pain and postpone hitting the wall by no more than 30min of cranking up. Basic training and and basics of proper nutrition will be more effective way of maintaining performance. Aside from top level racing, ratios lower than 0.8 (and that is a generous) are just about loosing the battle with yourself and keeps you from excelling. You just can't get stronger by cranking lower ratios. 22t granny being the standard ring on 99% of bikes was a crime against MTB. Just as is 30t on 10-42 cassette. You can't progress anywhere with having that incentive on your bike.
So a 42-10 cluster is not wide enough. I'm currently riding a 32-11 cassette with a 32-22 combo int he front. A 28t ring int he front gets slightly lower on an 11 spd system, but you lose out ont he top end. And a 32-10 combination is the lower liit when it comes to spinning out. On 2.4 HR2 run at 2 bars.
Going for a 44t big ring would solve quite a bit of that problem. Going for a 10 mm pitch chain would enable you to use a 55-11 cassette, which would be about the equivalent of a 44-9 on 1/2" pitch system. Sure, you'd need a completely new chain, it would be weaker, but the current 11 spd chain isn't exactly old and is narrower (yet more durable) than the 10 spd chains. I'm thinking it could work.
And i haven't even touched the problem of weird jumps with the current 42-10 cluster, some gears are wide apaprt while some others are close together.
The conclusion is that you either choose wrong way to get yourself up or have a bike type and setup incapable of effective and enjoyable handling the trail conditions, like too much compromise towards downhill. Deciding to ride at snails pace is just holding yourself from having fun. I personally can't stand such tempo, even on steep climbs, i just can't, because I know that if there was an 70yr old trail runner he would be faster than me. Here in Sweden were running is a religion, you meet those guys quite often, and it makes you think... and mash those cranks harder. So many times in the past I was riding a trail on 22t granny and saw hikers walking up way ahead of me, and I remember that feeling that something is just not right, that it takes me so much time to catch up on them.
I'd cross out clipless vs flats out of that conversation without a shadow of the doubt. I'd sooner add wheel size with issues of rotating mass and contact patch. In situation where a stepping on the hard gear will make you spin out on gravel or wet root on 26", the 29er will provide all the grip needed. Your really need a semi slick in total gloop to spin out a 29er onto which in most cases you can stomp like an idiot. What about crank length?
As for the pedals here also I'll have to disagree, especially as I ride a single chain ring on the same bike, sometimes in flats sometimes in clips. I didn't make any experiment planning and measurements of any sort but you don't need a degree in nuclear physics to understand that with flats you will mostly push like crazy each stroke with one leg (one can pull a tiny bit with the other leg but it's marginal), especially with a 1x10 setup, inducing some more bob or squat to the suspension than when riding clipped in and both push pull with your legs simultaneously. In that case the squat will be more due to the chainpull and therefore damper platform if activated or suspension design if open.
Now those wheel size! That would be something to discuss, unlike the crank length I guess
oh, and for the mallet being the only right pedals for technical ups and for proper downhill, I also don't believe in that as the balance will be related to cleat position on your sole which will determine the position of your foot on the pedal. Most enduro racers actually race smaller platform like the Shimano ones (XTR trail and similar XT...) or CB Candy! The main interest of the larger platform is to have a large contact surface in case you clip off.
Suspension design, even amount of travel has little relevance, try riding a Pushed shock. Try riding a good single pivot like Five or Heckler - they are not bobby at all. When I had Nomad with pushed rp23 the upper link barely moved when pedalling on fireroad and asphalt, now on 125mm Blur TR with stock CTD, crap moves all the time. It goes for pushing as soon as winter comes.
But as you are so convinced to be right, then explain me why all xc riders, 99% of enduro riders and a big chunk of DH riders do ride on clip? Why Steve Smith and Blinky as well as rat boy made the switch to clips? Just curious to here your arguments. Slipping a pedal? Ride Five ten shoes and proper pedals and the problem is over except maybe on a few DH sections at elite DH speed.
Location wise, unexperienced with weird things Swiss people tell me about living in Switzerland, I'd still take a chance living 2h drive from Eigers north face, working for Herzog&de Meuron office based in your home town... lucky man!
And just yesterday i was more or less keeping up in 22-32 with what i guess was a reasonably fast hiker/runner (someone who goes hiking regularly, but isn't a professional).
I respect that people like to hike on fire roads. I find it weird, sure, since i feel it's more efficient (and faster still, even though the gear is light) to just pedal up.
As for the clipped in, i guess the real reason is bike geometry. A few years ago the bikes were shorter and the head angles were steeper. So you needed to have your ass all the way back over the rear axle. That meant your feet were at about 45° and you had good grip in both up/down and forward/back direction (mainly up and forward, since your feet were pressing into the pedals). The seat to handlebar lenght got progressively longer over the past few years, head angles slackened and the result is that you don't need to be over the back of the bike as much. So you stand over the bike, not hang on behind it. The feet are not that sloped back anymore, so the grip on flats isn't as good anymore. So you switch to clips and get rid of all of those problems.
I can't believe what I am reading sometimes about geometry even by the hypoteticaly smartest people. Even my favourite James Wilson got messed up lately... Your neutral, normal body position on the bike relies on 3-dimensional relation between your body CoG and contact points of you and your bike: pedals, grips and saddle - period. The actual reach, the actual seat angle determines your ridign stance. Then only after that, we can talk of relation of your CoG to wheel axles, then patches, which determine mostly bike handling, not power transfer. If we talk uphill we can talk XC bikes, which are built 90% for uphills, and the principles of XC bikes geometry hare: short wheelbase and steep angles for low speed manuverability. Long stem to provide good pedalling position and stability on downhills, given narrow bars. AM bikes got longer in TT but come with shorter stems, the actual reach hasn't changed almost at all.
So to get back to that geo-spd argument - please stand in front of the table with feet spread on the floor as if you would stand on pedals. Now put hands on the table as if you would hold the handlebars, but don't put almost any weight on them, just as you should do when riding in proper neutral stance (can explain weight distribution if you want) Now move your hands 5cm forward still keeping weight on feet. Have you noticed how little has actualy changed? Now exaggarrate move 10cm forward (while AM and DH bikes got 2cm-4cm longer in recent years) to notice what happens. In order to keep yourself centered over the BB, youneed tot straighten your arms and move your ass back. So busted - you actualy rotated your feet more back/downward than forward due to longer cockpit. Chest went slightly lower as a byproduct.
It costs a lot, because this stuff, along with MOST OTHER NEW THINGS, are intended to be 'aspirational'. That means, the poster of the Ferrari or Lambo on the kid's wall. Do you think that kid bitches and moans every day about that Lambo costing way too much, and he can never afford it? Its an extreme example but the fact of the world is that there are people who CAN buy it and WILL. And it MAY affect the rest of your mountain bike world but it probably WON'T and at some point in the next few years you will be riding this, or a trickle-down version of it.
Sorry for ranting. On pain meds due to a recent crash, and had a moment of (relative) clarity. I will now go back into my pain cave.
yes they have to judge what is the most they can sell it for in large quantities to the gullible consumerist masses.
we on the other hand have to avoid being sheeple, and realise that they are way overpriced considering the price hike over 10 speed. if we accept these prices they will decide to hike up the price even more next time round
#conspiracy theories
Waiting a few years for the development of a ''trickle down'' cog & chain drivetrain is ridiculous in 2013
The new gruppo set always has and always will be oriented towards people building a new bike, when spending the extra coin over the next model isn't as extreme as upgrading an entire group. It's a matter of the cost difference to buy for a new rig is $200 vs the cost of upgrading being $2000. The sooner the whiney people realize that perspective, the much better off the mtb community will be.
Absolutely. And this isn't a bike-specific thing either. Ever thumb through a damn GOLF magazine? Or overhear d-bags talking about their new drivers?
I bet marketing and sales people at a lot of bike brands lurk on PB to see what the general consensus is about a new product. Seriously. Because most of the people on here can take apart a cassette, count from 13 to 42, disassemble a disc caliper, hack a bike together from a drawer of spare parts. This is not the bulk of the riding and buying community though. Heck even a lot of people I ride with don't want to get that granular with their parts and bikes. They take it to the shop.
My point is that I doubt SRAM makes irrational choices when it comes to pricing. My bit of experience in product development and manufacturing exposed me to the scrutiny that cost/pricing have to go through when thinking of new product introductions and big companies do not take this lightly.
@prestonDH - you can take this argument to the logical end, which is that any gears aside from 1x1 are not necessary to get up and down the hill and its all up to the rider. Cyclocross Magazine did a piece on "building a race-worthy bike for cheap" - the editor (my buddy) is an extreme cheapo and bike hacker, and by hand-picking parts off used lists could build a really decent bike for a fraction of the cost of the new hot thing. On the other hand its media suicide to behave like this since it scares off advertisers. He even promotes the idea of mixing Campy shifters and Shimano derailleurs.
Agree that the costs are more invisible when blended in at the OEM level, which is where most X0 purchases will be made.
@twozerosix - "I bet marketing and sales people at a lot of bike brands lurk on PB to see what the general consensus is about" - yes and no. Such market research is useful only for segment specific products in MTB segments in which users are often present on bike websites, so they can rely on each others opinions. Gravity MTB, Downhill in particular is an online-opinion-dependent segment because it is so small, it's members are deeply into online tech, so yes, here one might make use of "what people say most often". But the major buying force don't care for it. Even taking the elite, exclusive MTB products, let's say +500$ bikes, the majority is still in XC, AM and recently Enduro. The buying force, keeping companies fed, reads press releases and little comments, then they will remember more from PR than from critique. Because they have no time for thinking about it, they have much more things going on in life than MTB.
You also have to remember that what people say does not matter that much because product design is much more proactive than reactive process. People comment on something that's been released and when it is released, a completely new product is already in an advanced phase. You can't go around sites for inspiration for a new product by seeing "what people want", because they "don't want". They canno want something that isn't there. Few people might wanted wide bars, XX1 or dropper posts, but that's a blurry idea, not a demand. Nobody demanded clutch rear mechs to be developed. There is a huge online demand for Gearbox - Gearboxes are perfectly available - how many do you see on trails? is Zerode a best seller? Big companies don't respond to demand, they create it. 29ers - they were there since ages, Niner or Salsa had them well dialed, but it was the push from big companies that made them "available" to the buying force.
To conclude: People rarely buy what they say they want to buy.
Big companies certainly have a certain amount of clout but it doesn't operate the way you presented it. They don't create demand for a product. They exploit latent demand and then you see a surge in the uptake of a technology because the big companies have such a large following and large marketing budgets with which makes consumers aware of their solution to the consumers wants/needs and can bring the technologies to market at a lower price with economies of scale. Sometimes they are a hit and stand the test of time sometimes not (hydraulic brakes are here to stay, but hammerschmidt is fizzling out).
To conclude: People always try to buy what they say they want to buy but sometimes due to imperfect information (usually generated by overhyped marketing) don't get what they want.
Maybe call it XX1 OEM. But they are launching it under the X01 moniquer and the price diff just isn't big enough to fool any of us that this is really something different. They've haven't redesigned anything or put anything through a different or cheaper manufacturing process (like say not carving that cassette out of a single CNC'd block of aluminum but rather putting cogs on an alunimum spider body).They just skips a few small steps and called it X01.
We were all hopping that the 'trickle down' would trickle down a little further to a price point we can afford. Tell you what, make it another 40 grams heavier and another $400 cheaper and they would have my money.
SRAM could have made the X01 with cheaper manufacturing techniques and materials that result in a heavier and less exacting product which they could then sell at a cheaper price point, possibly even maintaining the same profit margins, because my personal preference (and i gather a great many others) says that the functionality of a wide range single ring groupo is something i desire and i could live with the weight/performance penalty.
ibis hdr spec'd at XX1 $6499.
Spec'd at XO1 $5599. They keep the rear mech, shifter and cassette and spec a TRS+ crank, bb, and ring to get there. XT brakes instead of XTR. Swap saddle and seatposts (which you'd ditch for a dropper and your own seat anyways). Everything else is the same. BTW, that's lighter and the same price as XT with the same cranks.
Still think the XO1 pricing wont save you any money? I for one am considering SRAM for the first time because of XO1.
I progressively saw the need for this 1 x ___ as a means to fit a shorter chainstay on the 29er to allow that bike to ride more like a 26". Since the chainstay is so short, no FD can fit, therefore, a solution had to be found. This lead to the 1 x 10/11 on the 29'ers and now that drivetrain has trickled down to the 26/27.5 crowd. So the solution to a problem is now being pushed onto the consumer where there is not problem on bikes which don't really require the need for a single ring. What was wrong with finding your gear choice and roll with a guide? Was the front derailleur so terrible it had to go? If so, the SRAM Hammerschmidt didn't really take off did it?
I've been riding mtn bikes for 25+ years and I never thought, "damn, I wish this FD was gone". To throw down more than $1,000 on a drivetrain is silly if you truly can't customize it for your own needs and terrains. BTW - I ride SRAM.
I can see where some people will benefit from 1x11, but the gearing isn't for me and the price is even more not for me..
I'm looking into building a 10speed version for less than half the price. I'll just make 10 louder.
Then again, my crystal ball tells that there will come X9 and X7 level groups in the (near?) future that will have less carbon and price...
and SHIT - my math was wrong up top - it's supposed to add up to $217 which is way less than my error and now i'm realizing just how inexpensive this setup is. i'll use the $1k i just saved on forks/wheels/brakes thankyouverymuch.
However I recently went into my local sports A-mart and now even complete bikes as low as $400 have Hydroformed alloy frames, integrated A-headsets, flawless dérailleur shifting, lockout suspension, IS disc brake mounts, seat tubes wide enough for a dropper post and weigh next to nothing all because of trickle down technology [and Chinese mfr'ing]... Yes Xx/Xo1 is insanely priced, but in a few years similar stuff will be on A-mart/Walmart bikes too, so don't worry the price will come down if the design is legit and catches on!
p.s. did everyone forget that even a brand new standard 9 spd setup with a front shifter will hold the chain on just fine over rough stuff for the first 6 months until the chain/sprockets wear a bit, I am massively sceptical about this products ability to perform after a year or two's wear, the replacement costs are far too high.
RaceFace n/w.... And maybe shimano can step up and make a slightly wide range cassette.... Good to go.
deore clutch mech + any other companies thick/thin chainring isnt gonna be that different
assuming youve already got a clutch mech, you can keep the same cranks
.....
and if hope ever release their 10-36 cassette mod for their hubs (id guess about 70 quid?). with a raceface thick/thin 30t chainring (50 quid)
well thats more or less the same as the SRAM setup for a 10th of the cost!!
Yeah, it's even better than you thought!
I do think that the price of most bicycles and bicycle parts is way, way too inflated.
The current bike pricing reminds me of the "housing bubble" era here in the US. People were paying millions of dollars for the same houses that at the moment cost 1/4 of old price (same house for 1/4 of the price). Real state firms made a ton of money off people's ignorance.
People keep paying way too much for bike parts and in order to not feel ripped off they make themselves believe that the new expensive parts made a difference (when deep inside they know it didn't it). I do understand that in the world of racing, new technology makes a difference, but for the average rider it probably won't.
Bla bla bla bla bla.
In my opinion the rider makes most of the difference, not expensive parts.
The actual plan is to squeeze every last consumer dollar out of the old technology before the transition phase, in which both technologies pretend to compete, thereby increasing the TAM (total available market) in the short term, while ensuring that those who are entrenched in both the old and new technologies can maximize profit in the long term.
Another example would be to deprecate the seat post. (ala southpark)
www.hondashadow.net/forum/53-general-discussion/117094-theme-bike-crazydave.html
If we are only paying that here, with a market a lot smaller than one US state, you are hardly likely to be paying $1200 USD for the XO1 group set.
I am not saying it's perfect - the fact that you need an ISCG 05 mount on your frame to be able to fit Hammerschmidt is one problem as not all the frames have it. The other is somewhat annoying buzz when in overdrive mode (it's planetary gearing) but it is acceptable. I sport this chainset for about two seasons on a SC Bullit and wouldn't change it for any other crank. Works exactly as it was promised, no issues whatsoever and instant shifting. I think this option is worth consideration as an alternative to 1x11.
I use a 8 speeds gear and they are a lot bigger than these.
Damn kids, get off my lawn!
I also ride with a fixie bike for the road, can't break something because there is nothing to break, not like in your "perfect bike with 10 or 11 speeds, hydrolics brakes, 200mm forks" and other.....
Oh, and I also have a modified dirt bike with a 100mm fork to do DH/Freeride, single speed too, 1 mecanic discs brakes and 1 hydrolic, and I can go everywhere I want with him and do some single tracks with a lot of kilometers with him.
A problem with that ? Not everybody have a big salary to buy perfects bikes. I ride with what I find and can build.
And I think the big scheme behind the X01 is that it WILL be much more affordable when spec'd on complete builds for 2014. So the idea is to make 1x11 build bikes available to the masses, as opposed to 2013 when most xx1 build bikes were like $8-10k. I agree that is an annoying ploy to get you to buy a whole new bike and make it harder to upgrade your existing bike... but oh well. The cost of both XX1 and X01 really don't seem too bad to me relative to XTR and X0 stuff anyway. Hopefully some day they can make the 10x42 cassette at a reasonable price, maybe if they make enough for OEM stuff this season they'll be able to get the price down for 2015?
Really? Is that what the consumers are asking for? A single ring eleven speed group? I was kinda hoping we would get to see a wide range 10 speed group with a 42 available on a cassette.
Just sayin.
But all the other consumers want the eleven speed.
Cost me $100.
Of course my next bike upgrade will have X01!
what's next? a chain guide less DH bike. (this will trickle down to DH bikes).
Death of the chain guides!
Rear derailleurs, still alive and kicking.
www.pinkbike.com/news/Ten-Speed-and-the-Nine-Tooth-Cassette-Cog.html
Sram X11 1200euros
Sram X01 1000euros
u must be fu**ng kidding me