Bike Check: Gee Atherton's Prototype 9.0 Mullet Bike Used & Abused

Sep 16, 2019
by Tristan Tinn  



Here is Gee Atherton's silver medal winning Hardline machine. Atherton Bikes prototype 9.0, just think about that. One season, nine varieties of bike. Consider the production concept of these machines and the scope for advancing geometry is huge. This can only be a good thing for bike progression. While I'm unsure of the specific sizing or geometry of this bike, his last Trek was an XL 29er, so it's interesting to see that Gee is playing with a mullet, 29/27.5" wheel combo. Interesting also that team mate Charlie Hatton is on a 29" front and rear, despite being shorter than Gee.

Gee weighs 83kg and today he was running a 525lb spring on his shock and normally has 84psi in his fork. He runs a 36t chainring with a seven-speed DH specific cassette. His go to tire pressure is 23psi up front and 25psi out back, and that may be be increased slightly here, depending on conditions. Gee runs 2.4" Continental Der Kaiser tires.

Gee Atherton // Atherton Bikes
Age: 34
Hometown: Llangynog
Height: 6ft 2in // 188 cm
Weight: 83kg
Instagram: @gee_atherton



Prototype 9.0

Size: Custom
Weight: 35lbs with pedals
Color: Raw carbon with black 3D-printed titanium lugs
Travel: 200mm front and rear
Tire Pressures: 23/25 psi
Bar Width: 790mm


Trickstuff stoppers



Mojo offset reducing crown


Pins wound in

Flip chip details

Internal routing which accommodates the chunkier Trickstuff hoses

Seven speed cassette



Adhesive branding for now

3D Printed Details

Thin tubing resembles a steel frame from the top down




Lever details


More sharpie reminders

Pre-Hardline vs Post-Hardline










194 Comments

  • 230 9
 Not gunna lie, the lugged carbon frame aesthetic is slowly growing on me.
  • 21 1
 love the style
  • 57 27
 Aestheticaly attractive, and also having a non neglectable advantage: this system of lugged tubes is probably the most intelligent thing I`ve seen so far in the discussable world of carbon. And least, if you explode it, you can only replace the damaged tube instead of throwing the whole frame as on a regular carbon shit. Atherton bikes are sexy AND they are smart ;-)
  • 77 0
 @Franzzz: I don’t know if you can actually change all the tubes. In an interview I read that they have to piece the bike together in a certain order or you won’t be able to stick the tubes in the respective lugs. And once they are glued in you can’t take out the lugs anymore.
  • 15 47
flag chriskneeland (Sep 16, 2019 at 6:20) (Below Threshold)
 @ninjatarian: Until you see it next to any other bike.
  • 18 31
flag shredddr (Sep 16, 2019 at 7:29) (Below Threshold)
 this is a Weagle bike? It looks like a standard Horst link bike.. hard to believe they needed Weagle to design suspension for them when I think that's a pretty well understood design now - or am I missing something?
  • 13 0
 @shredddr: The rotating lower pivot. They probably needed the license, so might as well bring him in on the design for branding purposes. I believe this was done before Atherton's started working with Robot.
  • 11 0
 @shredddr: Yep... you're misssing the linkage connecting the chainstays with the bottom bracket
  • 3 23
flag jorgeposada (Sep 16, 2019 at 8:29) (Below Threshold)
 If it's full custom I should get my last name on it. Forget it that thing hurts my eyes.
  • 2 0
 @Franzzz: please explain me how to replace a tube.
  • 4 0
 I dig the simplicity of the frame.
  • 18 2
 @fracasnoxteam: With my dick and my knife?!... No, seriously, I was too optimistic on that one. It is logically impossible to replace one tube without dismantling the whole frame. I was a bit too hopeful about that carbon thing. Dommage... :-/
  • 7 0
 @chriskneeland: yup - I'm a moron. Sorry folks.
  • 2 0
 @Franzzz: You can't change them. They are bonded together.
  • 11 0
 @Franzzz: Hacksaw and duct tape.
  • 2 0
 @makripper: YOU CAN IF YOU'RE BRAVE ENOUGH www.youtube.com/watch?v=haPvuhznuyI

Seriously tho, if a tube breaks theres probably a lot more problems with other parts of the frame that aren't seen.
  • 3 0
 As far as I know Robot Bike Co was using DW6 Link.

What I would do for a ~130mm 29er trail bike from Robot. Sigh. Too bad real life got in the way. Might have to go Saturn 14 instead.
  • 2 0
 @gonecoastal: www.marinobike.com/producto/custom-full-suspension-frame

This is the custom welder that Sick Bikes tried to use. They are cheap, heavy, and have poor quality control (people complain about misaligned frames and parts that don't fit) but STEEL! And custom geometry/travel for under $600. If you want something higher quality and lighter, you can get a cusotm Starling for 6 times as much.
  • 2 0
 @hamncheez: Hmmm very interesting.
  • 4 1
 I love the 3D printed cracks !?!
  • 1 0
 I know right, they tapers the edges of the lugs, and obviously they are darker now and the bike looks MUCH better... such a small change, but... Smile
  • 2 0
 @hamncheez: nah fam I’m good. I’d roll with Canadian style of Naked, Dekerf or Chromag if I wanted a hardtail. For full squish Saturn14 or Forbidden or Zerode are at the top of my list.
  • 2 0
 @gonecoastal: Those Nakeds are doooope. So pricey though.
  • 1 0
 This is something someone would lie about?
  • 2 0
 @hamncheez: Yeah! FiberFix©, as strong as steel!!! For once that carbon can be as strong as steel. Remember that steel is real, so carbon can be real as well with.... FiberFix®!!!

Hum.... better buy myself a UK made Stanton Switch9er FS instead, to get something real without any glue.
  • 2 4
 There's nothing better than having glue hold your frame together.
  • 3 2
 @Franzzz: Titus had done this years ago as many others. It isn't anything new.
  • 4 1
 @thesharkman: yeah f#ck boeing and Airbus what do they know ( well maybe not boeing ) ha ha
  • 1 0
 @hamncheez: I cracked an old Giant Trance frame in the rear triangle and used some fiber fix on it, that shit really works the bike is stiff as it was out the box. I wouldn't hit anything 20+ on it and it was AL not Carbon but I'de love to see someone give it a try haha
  • 3 0
 @norcalproductions: Really? I was joking when I linked that video.

True story- I was in an engineering/business competition against the guy who started fiber fix in college. Neither of us won, but his idea is now a full fledge business while my ski helmet with removable headphones is still just a crappy idea....
  • 1 0
 @myfriendgoose: I know. Until life got in the way I had dreams of an ultimate Naked. Road bike but with the ability to run Di2, discs, big tyres, full wrap fenders and rear panniers. I think they’re now called Gravel bikes.
  • 221 77
 amazing how civilized and intelligible pinkbike's comment threads are before its american readers wake up
  • 239 4
 Its a nice bike, but needs more trucknuts
  • 16 3
 It’s the only time of day we can talk about Gwin
  • 40 33
 Still mad one came up and stole your girlfriend?
  • 69 22
 Go chug some syrup, hoser.
  • 36 11
 @boomforeal: As an American, I love this comment
  • 51 27
 @boomforeal It's true that most Americans are overweight idiots, but it comes as no surprise that the most pompous comment of the day would come from a Canadian.
  • 6 0
 Don’t feed the trolls
  • 58 3
 Indeed, I am also surprised by the lack of a handlebar AR-15 mount
  • 21 0
 I’m sipping my morning coffee while reading this comment. Cracking me up. I gotta go find an ebike article I can loose my mind on.
  • 4 0
 wut r u doin' up so early?
  • 13 74
flag stumphumper92 (Sep 16, 2019 at 7:31) (Below Threshold)
 STFU you punk ass bitch
  • 35 2
 Uh oh, found the angry one. He might come roll coal on you or something.
  • 1 3
 Lose not loose...
  • 10 5
 @geerumm:
On behalf of Canadians, "sorry".
  • 12 5
 @CF519: speak for your self I'm not sorry lol
  • 6 0
 @Rucker10: Guess noone can take a joke anymore?
  • 9 0
 @gally-nh: Congratulations! You passes your Canadian citizenship test.
  • 4 0
 @stumphumper92: I guess they are just so used to that being a normal reaction for Americans that they took you seriously.
  • 5 0
 @geerumm: The Brits must’ve been too busy fapping over tea and crumpets
  • 1 0
 @gonecoastal: we’re just getting your breakfast crumpets ready now...
  • 6 0
 @geerumm: Pompous pompous... it could have come from a french, we are pretty good at that Smile
Nevertheless, what`s the difference between Canada and USA: the flag and the number of guns per persons???
  • 64 0
 Look at that seat angle! Stick a dropper in and pedal back up the hardline course.
  • 8 0
 ...And you may fit 3'water botles ind that frame!
  • 7 0
 At 35lbs too, probably lighter than my last AM bike.
  • 31 0
 Compared to the current carbon DH bike designs out there that looks classy AF.
  • 41 1
 I think AF stands for 'Aluminium Frame' now...
  • 12 2
 As someone who knows the fatigue notch sensitivity of alpha beta titanium alloys the cracks in this image are concerning. www.pinkbike.com/photo/17747477 The thing must either be overbuilt, or destined to fail.
  • 3 0
 I was genuinely scrolling down here to see if anyone had commented on those linkage cracks. You didn’t let me down!
  • 2 0
 It's a prototype bike, no? I can't imagine they would want to design something to be rideable with pre-existing cracks in it lol
  • 7 1
 @keen515 In a machined item yes, highly concerning. However from my (very limited) understanding of laser deposition. Surface imperfections are far less of a concern. I’d love somebody to educate me further tho! I’m a titanium machinist by trade, but the older subtractive, not additive type.
  • 7 0
 "As someone who knows the fatigue notch sensitivity of alpha beta titanium alloys"... Is that a phrase you get to use a lot? Because I'm pretty sure I'll never get to say it, and I might even be a little jealous! Big Grin
  • 9 0
 To be fair it looks like rough paint, I cant imagine they would make something with cracks in it
  • 15 0
 The ladies must go crazy when you use that line at the bar
  • 4 0
 Where are the cracks? I see a slightly rough finish.
  • 4 0
 Looks like paint chips that have been painted over to tidy it up.
  • 2 0
 I work in additive, I don't think those are cracks. Just paint imperfections. It looks like they've grit blasted or maybe etched the rough printed surface to make it smoother before coating. Without machining it's difficult to get a really good surface for coating.
  • 8 0
 Gee runs Bontrager G5 29er tires....see picture 3. (left of prototype 9.0 info box)

Conti has no 29er DH tire....they planed one for this year....but it never arrived.
  • 2 0
 Looks like they swapped out the front wheel for the photoshoot.
  • 6 0
 What casing tyres is he using? I’ve tried the Protection Apex version of the Der Kaisers on the DH bike. Grip is amazing, roll fast, seem to wear well. All good, except I keep on tearing holes in the sidewalls on the rear.
  • 2 0
 Same here.. I stopped using Continental tires for that same reason.
  • 16 0
 Just make sure you run the "Projekt" ones. I have yet to puncture them, even in the most adverse alpine terrain (this obviously means I'm going to flat the second I roll off the driveway next).
  • 3 0
 Mine keep tearing the bead off... wtf????
  • 1 0
 @P3N54: using the Projekt ones. Description says downhill race tyre. Still can’t keep air in the rear ones
  • 1 0
 I loved my Conti's they are super fast rolling and gave great grip. I had the same problem as you though, i think it is because i run such low psi. once i dropped and insert in my wheels they ran mint
  • 1 0
 Yup, same here. I love Conti's but ive torn sidewalls on 1st runs with them. Perhaps that could go to down user error though...
  • 1 0
 They're fine if you're running tubes, but they dont stay up tubeless properly. It seems they dont fit tightly enough on to the rim. Also the sidewalls are very thick so they can feel pretty wooden at times.
  • 1 0
 @michaelten: The only issue I had with them losing air is when I ran Stan's Race sealant. Zero issues since I started using the Conti RevoSealant (it's cheaper than Stan's as well).That would solve sidewall tears, though.

What pressure and rims are you running? I'm on 25 or 30mm internal width rims and run around 25psi (i weigh ~80kg)
  • 2 0
 @P3N54: there are at least 3 types of continental.. The shitty ones come in really shitty casing, but der baron/káiser/mud king I believe come in "enduro" casing i.e folding (they all say Projekt), and full dh casing. The enduro casing ones are very good grip and durability wise but these warp and lose sir easily... The full dh ones are indestructible but I believe its tricky to get them tubeless
  • 6 0
 @Lagr1980: Yeah the Conti tent at Crankworx Whistler said they don't even call the DH casing ones tubeless ready because they can't guarantee they will hold air. Seems a pretty big shortcoming to their competitors.
  • 2 0
 @fowlero: Thanks for the insight, I guess that explains my issue with them. I have the DH ones and they just do not work tubeless at all despite my best efforts.
  • 1 0
 @P3N54: running tubeless. I’m 72kg ran them on ex471 and spank spike 33’s. 28psi. If I put an insert in them it might help but then with that extra weight I may as well just put a DH Maxxis on and not worry about tearing sidewalls. Which is what I’ve done
  • 1 0
 @fowlero: Are DH pros running tubeless now? I recall a few years back many wouldn’t.
MAgic Marys are to be had for so cheap overseas any other great for WBP is foolish.
  • 1 0
 @gonecoastal: I don't actually know, I believe they do as you occasionally hear them talking as to whether or not they're running rim inserts. Fairly certain I've seen sealant explosions in the live coverages of the WC circuit too
  • 1 0
 @fowlero: I haven’t followed WC DH in a year or three. Back when I was still watching consistently ProCore was still a thing riders used to limp to the line.
  • 9 0
 Love the look of these frames, simple lines and clean appearance.
  • 8 0
 It would seem like mullet bikes could be better for doing backflips...?
  • 8 0
 Mullet for Rampage!
  • 9 1
 "Adhesive branding"?... you mean stickers?
  • 9 2
 Damn those levers are beautiful! An I'm a Hope fan boi
  • 2 8
flag landscapeben (Sep 16, 2019 at 9:09) (Below Threshold)
 But they're not hope...
  • 8 0
 errrrr......
  • 5 0
 seen these lying about dyfi bike park - beautiful in the flesh. understated and stealthy. put it next to a polygon for max lols
  • 5 0
 I thought he was more of a lump than 83kgs I must admit.
  • 6 0
 no fat on gee. i am same height and 9kgs more!!
  • 2 0
 @biglev: I just thought he and Dan were a similar build and Dan is a unit!
  • 1 0
 @Radley-Shreddington: fair call Dan is built! its all the shoveling and digging, the hard lien looked mental big.
  • 2 0
 @biglev: Yea them clips of him pick axing away at slate would do it!
  • 2 0
 Dan Also weighs 83kg according to google @ 1.88m
Google says Gee is 85kg @1.85m (6ft1, not 6ft2).

Wiki has Gee at 190cm (6ft3) and 85kg.

So... Gee is somewhere between 185 and 190cm tall and 85kg. maybe!
  • 1 0
 This was his mechanics best estimate! @betsie:
  • 3 0
 Anyone else notice the fact that Atherton Bikes can fit a bottle cage in the triangle! Time to get the DH geo ready for Enduro!
  • 2 2
 180lbs running a 525lb spring with 190mm of travel. Wow that’s stiff. Even 84 psi on his fork is really stiff for his weight. I guess it’s needed for those big drops to flat but must be something else when he’s trekking through the gnarl fast sections. I wonder how many tokens he’s running too.
  • 5 1
 probably stiff but your calculation lacks shocktravel
  • 1 0
 @optimumnotmaximum: even if the shock stroke was only 60mm a 525lb spring for a 180lb rider would be stiff for most people and I’m sure it’s a longer stroke than 6cm. I think it has more to do with the geometry of the frame and the way the suspension works as part of the reason why the spring rate is so high. Found this article interesting and seemed to answer my question as to why the spring rate is so high: m.pinkbike.com/news/atherton-dh-bike-prototype-2019.html
  • 2 1
 Big ass jumps need stiff suspension
  • 2 1
 I happened to notice how little Brendan Fairclough's fork moved near the top of the course so was nerdy enough to keep watching it. I swear it never went beyond half it's travel. I'd have crashed within 3 seconds of the starting gate with a set up like that!
  • 1 0
 Gee has typically ran all the tokens in his previous sessions from a couple older articles I found
  • 1 1
 Think that's stiff you should look at the spring rates of the guys running rampage... the few using coils. A lot of things play in to spring rate. I know a couple 170 pound dudes running 650's on trail bikes right now.
  • 2 1
 More speed = more force. If your average rider got on a WC level bike they'd get bucked around since they aren't going fast enough to activate the suspension properly.

There are a bunch of the Fox Dialed 2019 videos where Jordi and the guys talk about how at a lot of the events racers are changing their settings as they get faster in practice. Also since most of them aren't going 100% in the practice or even the timed "training" that those settings might not work for them on the race run when they are going 100%.
  • 2 1
 @NorCalNomad: those videos have been a highlight of the WC season for me.
  • 2 1
 @PAmtbiker: Yeah it's such a rad resource to actually see Jordi try to diagnose what the riders are describing, since it's the same sort of descriptions from the riders that you or I might come up with.
  • 1 0
 Let’s not forget George is 85kg, 1.88M of muscle. Something many f us here are not.
Guy is going to need all the volume spacers to get his suspension running best for himself.
  • 4 0
 when will it be available
  • 2 0
 “Very soon, later this summer” they’ve been saying since they first showcased the bikes. Personally I think they aren’t even close to bringing these to the public market.
  • 1 0
 These are really nice bikes, although I do wonder about things like tuned flex and what not. From a geo standpoint this is a great way to dial them in. Also, polish the lugs for sure.
  • 1 0
 Carbon flexes. The cool part about the lugs is being able to tune out most flex in them while tuning the carbon tubes for things like off camber grip. Hopefully ending up with good grip and easy suspension action that’s kind to the bearing loads.
  • 2 0
 I knew it!! I knew I spotted those Trickstuff brakes! I'd be interested to know how they performed for that event.
  • 4 0
 People say that it catches like an anchor
  • 1 0
 @1tomala: sweet. want it
  • 1 0
 @1tomala: depending what your weigh is ..
  • 1 0
 True if you feel over the weight of the average rider dh option.
  • 2 1
 It's cool to see a family of racers trying to do something new and progressive. The simple, classy aesthetic doesn't hurt either. Looking forward to more from Atherton.
  • 2 0
 Any ideas why the travel is 190?
  • 3 0
 guessing but maybe the 29 fork only gets that much and they balanced the rear to match. they can quickly make any backen they want for these.
  • 1 1
 Maybe because the fender would hit the downtube...?
  • 1 0
 @biglev: I think it can come with either 203mm or 190mm of travel.
  • 1 0
 It’s a mistake, the bike is 200mm. Now corrected
  • 1 0
 I saw the bike in Maribor. This is such a great piece of engineering. I'm waiting for the enduro model... Smile
  • 2 0
 Can someone let him know his crankarm is cracked...
  • 1 0
 Are Atherton bikes ever gonna be available for purchase?

Would love a 6” trail frame
  • 1 0
 All very interesting, but will Atherton Bikes ever actually have a bike for sale?
  • 1 0
 Is it just me, or are the stanchions slightly bent on the fork in the first photo?
  • 5 8
 I don't get how these guys have controllable traction running such low psi!? I run my 26" magic mary 2.4's at 30-35 psi. Got a puncture while riding yesterday and went down to about 20-25 psi before the sealant stopped it, but with that pressure loss the rear tire squirmed in the corners and became unpredictable... so how is that they are doing such massive stuff at such speed but comfortably running such low pressure? Somebody help me out here!
  • 16 0
 Sounds like the tyres may be too wide for your rim
  • 20 0
 You are running the paper thin lightweight tyres & they are running the DH ones maybe?
  • 23 0
 Do you really like eating pies?
  • 14 0
 As others have said, what sidewall type are you using? 35psi is pretty mental for modern tyres, you must literally bounce off everything.
  • 3 0
 I run Schwalbe Pro-core and run 16.5psi front and 18.5psi rear and the grip (traction) is phenomenal!
You do get the 'squirmy' feeling when you first start using it, but you get used to it and then forget about it all together because you're railing the off camber loose/gloopy stuff without problem.
Had twin punctures once, but the inner tyre system still allowed me to complete DH run and get 3rd on podium.
  • 5 3
 how much do you weight ? are you riding hardpack ? -nevermind your from GB
  • 4 1
 There are a few factors
- body weight
- tyre casing
- rim width
- tyre inserts
- the fact that no two pumps or pressure gauges will ever give the same readings and older/shittier ones can be miles off

And of course one man's (or woman's) intolerably squirmy may be another's comfortably muted.
  • 1 0
 Inserts do make a difference with this.
  • 5 0
 Crikey! Are you riding at a velodrome?

I'm 90 kg and run 21-23 on the front (sometimes lower), and 23-25 on the back in Magic Mary's on the DH bike, 23 and 25 feels pretty solid on fast tracks and I have to then drop it if it's a more technical or rooty track. This is with a topeak digital pressure gauge.

30-35 I'd consider almost unrideable for DH.
  • 1 0
 @justanotherusername: I had to run super high pressure to keep my crappy rock razor from letting rocks in to spike the tube I was using (after another flat) and I basically had no rear tire traction at all.
  • 2 0
 What tires and casings are you using?

I run standard EXO casings, which will need more pressure than a DD or DH casing to hold up. I'm also heavy at like 95kg - so I go for approx 28 rear 26 front. In the wet I might drop it a bit.

35 is seriously high.
  • 2 0
 @johnnyboy11000 My outer rim width is 35mm, without taking the tires off I'm guessing about 30mm inner.
@mcozzy Nope, running the DH.
@bigtim Yes, who doesn't! Beer
@justanotherusername Magic Mary EVO, Super Gravity, TLE, Vert Star 3, feels right, not too much bounce and I'm on an aggressive hardtail.
@n734535: I weigh 86kg, I have a good modern track pump, don't use tire inserts, the rest is above. By squirmy I mean losing control of the back end on hardpack.
@GrandMasterOrge I rode with this pressure at Antur Stiniog 2 months ago...

Genuinely interested in understanding this so appreciate the feedback from y'all.
  • 2 1
 29 and 27.5 tires offer more volume inside which ramps up differently then a 26. I use the "trucker" technique and thump the wheel to determine proper pressure. I'm looking for a fairly high pitch sound from the rear tire (middle C?) and slightly lower pitch sound from the front.
Sidewall thickness plays a part here too.
My buddy Dave Lohner came up with a sag trick for fat tires also. Sit on the inflated tire and bounce a little, looking for wrinkles on bottom. Great way to gauge your pressure without a gauge!
  • 2 0
 @Chonky13: What the hell, that's got to be a wind up, all of it is either completely wrong or just plain mental.
  • 2 0
 A lot of racers I talk to have stiffened up suspension, sped up rebound, and run higher PSI. If you can handle it, it's much faster. If you can handle it.......
  • 1 0
 i run 49 psi ( N - 1 whatever it say on the tire ) no wonder it so fast

bouncy ...? yea i adapted to it duh
  • 1 0
 @endlessblockades: what makes you think higher pressures would mean ‘faster’?
  • 1 1
 @justanotherusername: lower rolling resistance
  • 1 0
 @landscapeben: not unless your in the velodrome - it’s the opposite off road.

Google it if you don’t believe me - tyre setup is a function of variables, pressure is chosen as a result of the type of tyre chosen.
  • 1 0
 @justanotherusername: You're kidding, right?
  • 1 0
 @justanotherusername:

The above reply wasn't for you

You're right - what I said has actually been disproven in many conditions. I've also studied Hysteretic Flex and Suspension Losses and there are good studies published about it. A rock-hard tire can actually slow you down. As a timed racer on the same course, on tubeless DH-casing tires, 24psi generally makes me go faster than 16psi unless other factors (traction requirements, excessive flex) come into play.
  • 1 0
 @landscapeben:
I have the Magic Mary EVO, Super Gravity,
both front and rear with 25mm inner rims.
In park I ride pretty much all the time with around 20 psi without using inserts and tubeless.
Never had a problem. These tires are amazing, except hardpack.
Do you have the problems more on the front or the rear tire?
  • 1 0
 @endlessblockades: my guess is it's just all about matching the correct tire and pressure to the surface cause I know I got a KOM on a hard pack climb when I ran narrower tires with lower profile tread at a higher pressure (45psi), but on a descent over roots and rocks I only got a KOM when I ran my DH tires with a lower pressure... Still about 30psi mind you!
  • 1 0
 There was an adjustment period for myself going from 29x2.3 DHRII to more high volume tyres such as 29x2.4 Wild Enduro or 2.35 Magic Marys. 30psig in the later tyres is a fuck of a lot of air. Tyres are almost rock hard.
  • 1 1
 Im 110kg, run 26psi front, 36 rear, exo on front dh rear, 29” & inserts both ends. Any lower pressure even 1-2 psi the tyre moves and you start backing off. I prefer to drive the bike in to the dirt & generate grip, instead of running lower pressure and relying on the tyre to find grip.
Comes down to personal preference and how you ride.
  • 1 1
 @landscapeben: I'd recommend some more experimentation. I run my tires as low as I dare, my limiting factors are either a) rim strikes (have smashed a carbon rim when a slow leak and my own laziness to top up pressure near the end of a ride conspired against me) or b) rolling the bead right off in a high speed corner and burping the tire. If those things aren't happening I will reduce. I recently added a cush core to my rear wheel so I can set it closer to the front. The lower pressures give me a massive amount more grip and confidence, and I think they roll just as fast unless you're riding on a very smooth surface, in which case higher pressures are definitely faster.

Specifically, I usually ride from my house in Squamish to the trailhead at 24/28 f/r and drop to 18/22 or so before I begin descending. Before the cush core I didn't dare run less than 25 in the rear though. In the bike park I'll run more pressure because the feeling of folding my bead over in a high speed corner makes my stomach turn, it terrifies me hahaha.
  • 1 0
 @OneTrustMan: the rear tire
  • 1 0
 @keillor: yeah ok maybe I'll play around with it a bit :wink:
  • 1 0
 @zyoungson: this is what I think too but wanted to find out why this is so far from what the pros are doing and if I could be missing something :wink:
  • 1 0
 @bigtim:
> Do you really like eating pies?

This needs more up-votes. It's not even being mean; tires squirm worse for heavier riders.
  • 1 0
 Those Trickstuff Maxima brakes look sick.
  • 2 1
 I just wish they were still Robot Bike Co. The raw lugs looked nicer.
  • 2 1
 Yes now I know my height in cm....
  • 1 0
 Surprised nobody mentioned the special forks.
  • 1 0
 You only “WIN” gold.
Not to detract from 2nd at Hardline of course
  • 1 0
 Simple looking. beautiful
  • 1 0
 Hu member iron horse bike?
  • 1 0
 Did someone just buy a new macro lens?
  • 1 0
 So rad!
  • 1 0
 Slack as fu..k!
  • 2 4
 Weighs the same as my XL SB150. Though, I guess my bike pedals up better?
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