Specialized Stumpjumper ST Comp 29"

$2,719.99
Regular price
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The new Stumpjumpers may be the most radically designed bike ever made. And now they come in a Short Travel version as well, and at a great pricepoint to boot. With a whole new frame design, which manages to shave weight and increase stiffness all at the same time, you will feel one with your bike like never before. The build here is no-nonsense with a focus on dependable, high-performing parts, like Shimano SLX front and rear derailleurs, Tektro Gemini disc brakes, a RockShox Recon RL fork with 130mm of travel, a custom X-Fusion 02 Pro RL rear shock with 130mm of travel, and wide alloy wheels.

What Specialized has to say about the bike:

The new Stumpjumper ST uses new tube shapes and an asymmetrical design to ensure that you get awesome ride characteristics. So get ready, because the Stumpjumper ST Alloy 29 is sure to exceed your expectations of how a trail bike should ride.

Our design goal for the new Stumpjumper was simple—build the ultimate trail bike, one that feels telepathic. And it turns out that this feeling all comes down to stiffness. Think of it this way: when the frame's telling your hands one thing and your feet another, your brain gets confused with the imbalance and the bike feels unstable. In order to fix this, we had to get to work on dialing-in the materials and shapes.

We continued down the suspension path with a custom Rx Trail Tune on both the fork and rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Rx Tune to get each bike to land in the middle of the adjustment spectrum, and this gives you the biggest possible range to fine-tune your ride. Another focal point of the tune was matching the suspension characteristics between wheel sizes—we developed a specific Rx Tune for each platform. So, no matter what wheel size you prefer, you'll get perfectly linear suspension.

Steps were also taken to make this bike easy to live with. Threaded bottom brackets make a triumphant return, and we made room for up to a 3.0' tire. You're also free to run whatever aftermarket rear shock you want, since we're using standard metric shocks. And customization is furthered with a Flip Chip that lets you to dial-in your Stumpy to your riding style. Switch it from High to Low and it drops your bottom bracket 6mm and slackens the head tube by half-a-degree. Little details also jump out to surprise you, like a newly designed ribbed chainstay protector that makes chain slap a thing of the past and nearly silences the drivetrain.

The build here is no-nonsense with a focus on dependable, high-performing parts, like Shimano SLX front and rear derailleurs, Tektro Gemini disc brakes, a RockShox Recon RL fork with 130mm of travel, a custom X-Fusion 02 Pro RL rear shock with 120mm of travel, and wide alloy wheels.

 

TECHNICAL SPECIFICATIONS

BOTTOM BRACKET SRAM Powerspline
CHAIN KMC X11, 11-speed w/ Missing Link™
CRANKSET SRAM NX, Boost™, direct-mount XSYNC, Powerspline
SHIFT LEVERS Shimano SLX, 11-speed
CASSETTE SunRace, 11-speed, 11-46t
CHAINRINGS Steel, 30T
REAR DERAILLEUR Shimano SLX, Shadow Plus, 11-speed
FORK RockShox Recon RL, Solo Air, 51mm offset, rebound adjust, lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 130mm of travel
REAR SHOCK X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, pedal platform, 190x42.5mm
SADDLE Body Geometry Henge Sport, steel rails, 143mm
SEAT BINDER Specialized bolt-type, alloy, 38.6mm
SEATPOST Specialized 2-bolt head, forged alloy, 5mm offset, micro-adjust, 34.9mm
HANDLEBARS Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
STEM Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
GRIPS Specialized Sip Grip, half-waffle, slip-on
FRONT HUB Specialized, sealed cartridge bearings, 15x110mm spacing, 32h
REAR HUB Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
INNER TUBES Standard, Presta valve
SPOKES Stainless, 14g
RIMS Double-wall, 27mm internal width
FRONT TIRE Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"
REAR TIRE Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"
FRONT BRAKE Tektro Gemini Comp, hydraulic disc, resin pad, 200mm
REAR BRAKE Tektro Gemini Comp, hydraulic disc, resin pad, 180mm
PEDALS Specialized Dirt
FRAME M5 alloy chassis and rear end, asymmetrical design, 29 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 120mm of travel