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Specialized Men's Stumpjumper ST Comp Alloy 29

Specialized Men's Stumpjumper ST Comp Alloy 29
  • Color: Gloss White Sage / Black
  • Color: Satin Nice Blue / Hyper
$3,019.99
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Details

All of you die-hard alloy fans can rejoice. Yes, the new Stumpjumper ST comes in an alloy version, and it may be the most radically designed alloy bike ever made. And with new tube shapes and an asymmetrical design, 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 FOX FLOAT Rhythm 34 fork with 130mm of travel, a FOX FLOAT DPS Performance rear shock with 120mm of travel, and wide alloy wheels.

- The all-new alloy Stumpjumper ST frame features an M5 alloy front- and rear-end, an asymmetrical design, and our 29 Trail Geometry, so it's both capable and comfortable.
- The FOX DPS Performance rear shock features our Rx Trail Tune, ensuring that no matter the frame or wheel size, your bike is dialed-in perfectly.
- A FOX 34 Rhythm fork handles suspension duties up front with stiff stanchions and plenty of adjustability.

Specs

Frame M5 alloy chassis and rear end, asymmetrical design, 29 Trail Geometry, threaded BB, fully enclosed internal cable routing, sealed cartridge bearing pivots, replaceable derailleur hanger, 120mm of travel
Fork FOX FLOAT Rhythm 34, GRIP Damper, 51mm offset, 2-position sweep adjust, tapered alloy steerer, 130mm of travel
Rear Shock FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 190x42.5mm
Axles Front: 15x110mm
Rear: 12x148mm thru-axle
Rims/Wheels Double-wall, 27mm internal width
Hubs Specialized, sealed cartridge bearings, 32h
Spokes Stainless, 14g
Tires Front: Butcher, GRID Casing, GRIPTON compound, 2Bliss Ready, 29x2.3"
Rear: Purgatory, GRID casing, GRIPTON compound, 2Bliss Ready, 29x2.3"
Crankset Race Face Ride, 24mm spindle, 170mm crankarm
Chainrings Steel, 30T
Bottom Bracket Threaded BB, 24mm spindle
Chain KMC X11, 11-speed w/ Missing Link
Rear Derailleur Shimano SLX, Shadow Plus, 11-speed
Cassette/Rear Cogs Shimano SLX, 11-speed, 11-46t
Shifters Shimano SLX, 11-speed
Handlebars Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
Tape/Grips Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
Stem Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise
Brakes Shimano MT-501, hydraulic disc, resin pad, 180mm/200mm
Pedals Specialized Dirt
Saddle Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
Seat Post X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, S: 125mm, M/L/XL: 150mm of travel

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Gloss White Sage / Black / Small 888818430376 93219-5102
Gloss White Sage / Black / Medium 888818432127 93219-5103
Gloss White Sage / Black / Large 888818431359 93219-5104 210000003245
Gloss White Sage / Black / X-Large 888818430765 93219-5105
Satin Nice Blue / Hyper / Small 888818429868 93219-5002
Satin Nice Blue / Hyper / Medium 888818430413 93219-5003 2706
Satin Nice Blue / Hyper / Large 888818433230 93219-5004 2699
Satin Nice Blue / Hyper / X-Large 888818433407 93219-5005

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