The Specialized Stumpjumper is a model with quite the history. Going all the way back to the early days of the sport. In fact, it was the first mass produced, widely available mountain bike. Many folks first glimpse of a mountain bike was when the Stumpjumper hit the trails back in 1981. Now fast forward to 2010 and the Stumpjumper hardtail has evolved to something never imagined back in the early 80′s.
What we have here is the 2010 Stumpjumper Expert Carbon 29. The model sits at the top of the hard tail line up and just below S-Works models. Here’s a run down of the features of this model.
•Fox F29RL 90mm air-sprung fork with rebound/compression adjust, lockout
•9mm thru-axle front hub (DT Swiss Ratcheting skewers) with hi/lo flanges and DT Swiss Competition spokes comes with 24/28mm end caps for increased tracking strength and multi-fork compatibility, with a DT Swiss alloy freehub in the rear.
•FACT 8m carbon Stumpjumper HT 29er frame, tapered head tube and 29″ race geometry.
Okay, a few more highlights here include “custom” Avid CR SL Elixir brakes, SRAM X-0 rear derailluer, X-9 triggers, and SLX front derailluer shifting a custom FC-752 crank set. The bottom bracket is a custom oversize BB-91. Also, this rig features the new 12-36T cassette from Shimano which is mounted on a DT Swiss hub laced to DT Swiss X450-SL rims. The front hub is a Specialized Hi-Lo hub as mentioned. The remainder of the components are mostly a Specialized bunch. Stem, handle bar, seat post, and a 143mm Specialized Phenom saddle. Tires are also from Specialized and are the 2.0 versions of the Fast Trak LK’s. Nice high end, but solid spec. Nothing too crazy expensive, “stupid light”, or proprietary where it counts. Good stuff.


The Stumpjumper Expert Carbon 29 is a good looking rig. I was liking the red color accents on the ultra flashy weave of the carbon. Speaking of the carbon, lots of folks are “concerned” about mountain biking with carbon fiber frames. Specialized took some pro-active measures here by using a pretty impressive chain stay guard, metallic plates around the bottom bracket area to ward off chain suck damage, and a clear strip of thick tape that runs the length of the down tube. A spare strip of this protective tape is also provided with the bike that fits the top of the top tube which can be applied at the owners discretion. Specialized does offer a limited lifetime warranty on the frame to the original purchaser, according to their website.
The numbers on the Specialized Stumpjumper Expert Carbon 29 in the 19 inch size read like this:
-Seat Tube………………..19.21″
-Effective Top Tube…….. 24.21″
-Chain Stay Length……… 17.17″
-Bottom Bracket Height…. 11.97″
-Effective Seat Tube Angle 73.5 degrees
-Head Tube Angle………… 71.5 degrees
-Standover*………………. 33.4″
-Weight**………………… 25.01 lbs
-Available in three sizes…..17.5″, 19″, 21.5″
-MSRP……………………….$3300.00
*Note: Standover is my measurement at point on top tube where I am directly over the bike standing on the ground, straddling the top tube.
**Note: Weight with my pedals installed, ready to ride.
With that covered, I will be back soon with a report on the ride and my First Impressions. Also, stay tuned for a joint Out Of The Box report on the Epic Marathon 29″er to follow this post soon.
Note: These products are provided to Twenty Nine Inches at no charge for reviewing. We are not being paid or bribed for this review. We will give our honest opinion or thoughts through out.















Nice bike!
Geometry sheet reads much like a 2002 Fisher, doesn’t it?
And not enough like a Fisher. Cloxxki, you’re a smart guy and I respect your experience in the sport, but give the Fisher buttkissing a rest for a while. There are valid 29er geometries that don’t include 52mm fork offset.
Doesn’t 25lbs seem too heavy for a $3300 carbon HT? This bike is oriented toward XC racing, so the weight is pretty important. I’m really curious about weight of the similar spec’d Cdale flash 29 2.
I’ve got an 09 c-dale F29 1 that weighs in just under 25 lbs, but the lighter bb30 cranks, hubs, wheels, are above what is spec’d on both the stumpy and the Flash 2, so I would expect the Flash 2 to weigh in the same ballpark as the stump and my F29 1. Not sure where people get the idea that every hardtail should weigh 20 lbs. Sure the C-dale 26′er Flash 1 is advertised at 16 lbs, but it costs nearly 10 grand. You can’t make a bike weigh less than the sum of it’s components.
@pc_vern: It should also be noted that I weighed the bike ready to ride (ie: with pedals) which is almost never done in marketing catalogs. Also, the pedals are pedestrian Shimano issue, so they are by no means a “weight weenie” component, but I feel that it reflects a more “average” choice in pedals.
Certainly if you take a look at some of the components you will begin to see some areas where significant weight savings could be made. That 12-36T cassette being an excellent example. The wheels can be made tubeless also, by the way, and one could see a slight reduction in weight here.
So, it could quite easily be 24 and change, ready to ride, and I think that might sound more palatable then, no?
And certainly, those changes would cost a minimal amount. Throw some cash at this rig and youd see even more weight come off, but then we’d be where “JasonDoubleU” was taking us above in his comment.
The bracket is a Specialized OSBB, it has a 84,5mm width, not a 91 like Trek uses…
Nice bike!
@Ninko: The bottom bracket spec is listed as BB91 on Specialized’s site: http://www.specialized.com/zz/en/bc/SBCBkModel.jsp?spid=45868&eid=4342&menuItemId=9247
The C-dale Flash 2 29er will be less weight simply from the frame and fork. The Lefty on that bike is 2.97lbs while the Fox fork is 3.73lbs, that’s the weight listed for a normal 1 1/8th steer tube while the one on the Specialized is a tapered steer tube and should weigh more. While neither company has released frame weights on the 29er versions, they have for the 26 versions of the frames. The C-dale is 2lbs while I believe the Specialized was advertising a ruffly 2.6lbs for their frame a year or two ago, and I don’t believe they have had any significant changes since then. Both companies 29er frames will obviously be heavier because there 29 frames and because they use a lower grade of carbon then on the 26 frame. However it does stand to reason that the .6lb difference will still be there seeing the changes are basically the same for both companies. Plus it’s good to note that frame and fork weight are pretty important seeing those are two parts that most people won’t up grade.
Specialized is listing 1282g for the Expert 29 and 1130g for the SW HT 29 on their dealer site for bare frame weight, not sure which size though.
dauber, do they list frame weights for the epics? I’ve always been curious
What is custom about the cranks and other parts on this bike?
Thomas,I have not seen epic weights listed yet. Will check back.
Could I swap out the crank, or does it need to be a special size?
@weeber: Specialized will have things custom colored, with special graphics, all the way to having customized shocks and components. On this bike most of the things listed as “custom” are cosmetic.
@bikehike: As long as the crank you are going to swap to has Shimano’s dimensions for the spindle. (ie: no SRAM) Otherwise you will also need to press out the bearings and replace those as well.
I just got mine $24OO.OO from my LBS. My first 29er. Quite impressed. Only mod so far is changed front rotor to a 185 avid X. I weigh 21O and needed some more power. Going tubeless next. After that Id like to change the cranks & rings , they are the only part of the bike I dont like “looks”.