Stumpjumper Specs

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FRAME FSR technology, M4 manipulated alloy frame with Transform monocoque TT, sealed cartridge bearings, disc compatible, 120mm travel, replaceable derailleur hanger, two sets of water bottle bosses
REAR SHOCK Fox Triad, custom on-the-fly three position switch 1) lock out, 2) Open, 3) ProPedal pedal assisting damping, adjustable rebound, 7.5″x1.75″
FORK Fox Talas RL, 90-130mm, rebound, compression adjustment, lock out, alloy steerer
HEADSET 1 1/8″ threadless, 10mm insertion alloy cups, cartridge bearing
STEM 3D forged CNC machined, 4 bolt, 31.8mm OS clamp, 8 degree rise
HANDLEBARS Specialized XC Low Rise 31.8mm OS bar, 2014 butted alloy, 6 degree upsweep, 8 degree backsweep, 640mm width
GRIPS Specialized MTB grip, black with grey ends
FRONT BRAKE Avid Juicy 7, hydraulic disc, S/M 160mm, L/XL 185mm Polygon rotor
REAR BRAKE Avid Juicy 7, hydraulic disc, 160mm Polygon rotor
FRONT DERAILLEUR Shimano M-580 LX, 34.9mm clamp, top swing, dual pull
REAR DERAILLEUR Shimano M-952 XTR, long cage, standard spring
SHIFT LEVERS Shimano M570 LX, 9-speed
CASSETTE Shimano HG-50, 9-speed, 11-34t
CHAIN SRAM PC-971, 9-speed
CRANKSET Shimano M-760 XT Hollowtech II, 2-piece crank/BB
BOTTOM BRACKET Shimano M-760 XT, Integrated with crank
PEDALS Shimano SPD 520, clipless
RIMS Mavic XM317 disc, 26″, black, eyelets
FRONT HUB Specialized Stout disc, sealed cartridge bearing, high/low flange, 32 hole
REAR HUB Shimano M-525 disc, 32 hole, QR
SPOKES DT Swiss 1.8mm, black, brass nipples
FRONT TIRE Specialized Resolution 26×2.0″, aramid bead, dual compound, 120 TPI
REAR TIRE Specialized Resolution 26×2.0″, aramid bead, dual compound, 120 TPI
TUBES Specialized Ultralight, presta valve
SADDLE Specialized Body Geometry Rival, hollow Cr-Mo rails
SEAT POST 2014 butted alloy, black, 30.9×350/400mm
SEAT BINDER 7050 hard annodized alloy collar with QR, 34.9mm clamp ID, black


  1. Warning!!!
    Clipless pedals are very dangerous.
    I’ve been riding bicycles continuously since I was 5. Have even commuted to work year-round in suburb north of NYC, Had been using Shimno clipless pedals for about 10 years and had several occasions when I couldn’t release from the pedal and dumped over. The last time, at age 58, caused my right hip to fracture. I needed 2 surgeries and 6 months of rehab. After the accident I found out about two other cyclists who suffered hip fractures because they couldn’t release from their pedals.
    Needless to say I took them off my Trek and will never use them again.
    The Pain was not worth the gain.

    • There is no doubt that clipless pedals can be difficult to get out in certain situations. For the longest time, I actually left the test platform clipped into one side of the pedal. This allowed me to have a stable platform to rest my foot in certain circumstances where I did not feel comfortable with my foot clipped in. Usually this was rock gardens. Not all pedals come with a test platform however but this worked for me. Additionally, I adjusted the tension to about the easiest setting and I always clean both the pedal and the shoe cleat. Honestly they are almost too easy to get out of now. I find when I jump and pull up with my feet, I actually come un clipped. Just as dangerous as I can loose my footing. All in all, for me using clipless is still worth the risk until I fracture something that is…

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