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Curtis Keene's Specialized Demo 8 - Sea Otter Day 2

Apr 16, 2011
by Tyler Maine  



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Only select Specialized athletes have access to the new prototype 135x12mm rear ends and Curtis is one of those riders. I know that some of you are already throwing up your arms and going "Why would they look at going back to 135mm rear spacing when they just got to 150mm spacing?". With the advancements in DH gear technology and the development of the 9 tooth rear cog, Specialized riders have looked at the 7 speed rear cog set as a viable option that gives their bikes more clearance thought tight sections of trail.

Curtis and his team mate Brad Benedict of the Specialized Gravity USA team are hanging it all out at this weekend's Sea Otter DH - best of luck guys!

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50 Comments
  • 140
 I am loving the small ring up front. You might be able to eliminate the bash all together being that high up saving even more weight yet.
  • 70
 dont get it..spesh always made the demo with 135mm hubs..mine for example is one of those..then they went 150mm for 2011, and now the pros ride again 135mm...come on engineers..settle down....
  • 50
 nothing wrong with trying different options, and im pressuming this is about more than the rear axle width
  • 110
flag sniperbob04 (Apr 16, 2011 at 9:19) (Below Threshold)
 they atleast need the 12mm true axel cuz without true axel the rim can come off and is way less stiff
  • 40
 they went to 150mm because of zero dish and now they have a 135mm with zero dish which is lighter and may even be stiffer.
  • 20
 yeah but he says the reason is to have "more clearance through tight trails" with a 15mm difference that's 3/4 of a cm on either side of the bike! plus your bars, shoes and body stick out way more. i'd defs prefer it if they stuck to one standard
  • 100
 lol like anyone will the the difference between 135 and 150 on the trail lol like if someone will stop and say f*ck I cant go down that trail I too wide :O Rolleyes
  • 10
 Its sea ottar, people run odd setups that you wouldnt see at many other races.
  • 40
 bikeaddict123, I disagree: If my rear mech or rear disc rotor clears a rock instead of smashing into it, I'd call that a good thing.
  • 82
 135mm makes sense with only the 7 speeds, you will get a better average chainline. I fail to see how it being slimmer by 7.5mm on each side is gonna help with clipping rocks though, considering your back foot cranks and pedal sit right in front of it.
  • 71
 It's pretty hilarious really, "150mm is the best thing to happen to a dh bike, wait no, we've decided that a 135mm rear is better after making all of you buy fancy new hubs. " Big Grin
  • 41
 2 words: market, money.
  • 14
 they need it though, the bike industry is struggling
  • 31
 Yeah, another load of crap coming from specialized. Only them can hype so much a change on rear axle overall width.
  • 10
 The problem is that there are so many different combinations of things that could be done for drivetrain setup. I don't want to bash the bike industry because that's a very though business to be in, but it can be very frustrating from a consumer's standpoint. It's highly unlikely that there will ever be a de facto standard for DH drivetrains, but it could be worse: sheldonbrown.com/nanodrive/index.html
  • 30
 "The Nanodrive MTB system sticks with 9 sprockets in back, 3 in front, because extensive research has proven that this as many as the human brain is capable of comprehending, and not everybody can even do that many." hahaha
  • 20
 This new standard is good.

If my rear mech or rear disc rotor clears a rock instead of smashing into it, I'd call that a good thing.

7 speed is also good. 9/10 is overkill.

Zero dish is good.
  • 10
 If you think this is a bad example of the bike industry strugglling, low down from tyepay (i dont remember how to spell it lol) is that spec will have NO 26" hardtails in the mid to high level xc/trail hardtails, just at entry level and the jumpers. time for an upgrade!
  • 60
 Those tires have some seriously sexy meat! Fooock, I want some of that chunder!
  • 30
 Hopefully the 12x135mm hub and 9T 7spd DT hub makes production. Makes way more sense than stupid 150mm hubs and 11spd cassettes. Looks like the new rear triangle works perfect with existing Demo front triangles. Hopefully they will be available aftermarket.
  • 41
 So ordering name/flag stickers from Victory Circle Graphics is a big deal now?

I only clicked on this article cause I was going WTF when I saw 12/13mm rear end.
  • 10
 PROOF READ!!!!!!!!!!!!!
  • 10
 Well... at least they got the zero dish wheel right :-) After a couple of seasons on otherwise identical 150 rears, other with CK hub and other with Hope (which creates zero dish too), there's a thing to be said on benefits of that, if you are (un)fortunate enough to take build and care of your own wheels too.
  • 10
 I like the switch to 7 speed very much, but am thinking that the 9 tooth system may wear chains, bearings, and cogs faster. The closer you put the leverage to the centre of the axles, the higher the tension. More tension = more wear. This is fine for sponsored riders, but for ordinary folk who have to buy gear, I'm not sure about it.
  • 10
 I'm sure pros will replace their drivetrains much more frequently than ordinary folk.
  • 10
 I think it is awesome that specialized is innovating like this. Everyone is confused about the switch in axle lengths but they are just prototyping things as specialized normally does throughout the season. Sam Hills bike will always be just a little bit different than the production anyways
  • 21
 Im still sold to the 12*150 rear end witch is was stiffer than the 10*135 and still stiffer than 12*135. I would do 12*135 for dual slalom and slopstyle, 12*142 for fr and 12*150 for dh
  • 10
 its nice to see him running a small cog set because ive always had one and people make fun of me for it... but it makes sense, why do you need easy gears on a dh bike??...
  • 10
 Easy gears are good for getting to those secret handshake trails..
  • 10
 i'd tap that ! That bike looks seriously quick!
  • 10
 So which is better, 135mm or 150mm?! Quit changing it!!
  • 10
 Actually 142 makes sense because then we could have 2 standards 142X12 and 130X10 done! over! kaput! if you have a superlight XC or road bike you run what is the current road standard and then you have the 142X12 its an even split between 135 and 150 and has the stiffness that is currently being desired by trail riders the world over. I havent done the math but I also think that with a 142 you can run 6 or 7 gears with zero dish or you can run a 11-36 10 speed with dish..
  • 10
 The syntace 142 is stupid but a well thought redesigned 142 would be good
  • 20
 its how the 135 should have been from day one
  • 20
 But if this new 135mm is better because it's smaller and has a wider hub flange due to the 7 speed, couldn't you use that same concept and make it wider on a 150mm if wider is better. As long as it has a thru-axle, I don't really give a sh*t. I do like the convenience that the 142mm has to offer.
  • 20
 what size frame?
  • 10
 Looks like a large to me
  • 10
 Large frame for Keene.
  • 10
 best bike ever made right @Protour
  • 10
 head angle looks so slack! Big Grin
  • 10
 Uh standard decendants will fit a 30t chainring?
  • 11
 so does it mean that the front sprocket is only a 20t? nice and small
  • 10
 nah its a 30t custom sprocket on custom cranks
  • 10
 No, the front chainring is 30T, the cassette is 9-20T.
  • 10
 those cranks arn't custom, they are standard truvativ decendants
  • 20
 ahh so how do you explain the 30t sproket Wink
  • 10
 butters
  • 10
 niiiccee i want that
  • 10
 Beautiful







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