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. You'll find new tube shapes, an asymmetrical design, and a connected feeling with the trail. So get ready, because the Women's Stumpjumper ST Comp 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, shapes, and the layout.
We continued down the suspension path with a Women's Rx Tune that gives both the fork and rear shock a custom tune specifically for female riders. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Women's 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 and rider size. So, no matter what, 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.
|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|
|FORK||FOX FLOAT Rhythm 34, GRIP Damper, 51mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 130mm of travel|
|REAR SHOCK||FOX FLOAT DPS Performance, Women's Rx Tune, rebound and three-position compression adjust, 190x42.5mm|
|FRONT HUB||Specialized, sealed cartridge bearings, 15x110mm spacing, 32h|
|REAR HUB||Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h|
|RIMS||Double-wall, 27mm internal width|
|INNER TUBES||Standard, Presta valve|
|FRONT TYRE||Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"|
|REAR TYRE||Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"|
|CRANKSET||RaceFace Aeffect, 24mm spindle, 170mm crankarm|
|BOTTOM BRACKET||Threaded BB, 24mm spindle|
|SHIFT LEVERS||Shimano SLX, 11-speed|
|REAR DERAILLEUR||Shimano XT, Shadow Plus, GS cage, 11-speed|
|CASSETTE||Shimano SLX, 11-speed, 11-46t|
|CHAIN||KMC X11, 11-speed w/ Missing Link™|
|FRONT BRAKE||Shimano SLX, hydraulic disc, resin pads, 200mm rotor|
|REAR BRAKE||Shimano SLX, hydraulic disc, resin pads, 180mm|
|HANDLEBARS||Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width|
|GRIPS||Specialized Sip Grip|
|STEM||Specialized Trail, 3D forged alloy, 4-bolt, 6-degree rise|
|SADDLE||Body Geometry Myth Sport, steel rails, 155mm|
|SEATPOST||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|
|SEAT BINDER||Alloy, 38.6mm|
|Bike Standover Height||750mm||756mm||769mm|
|Fork Length, Full||540mm||540mm||540mm|
|Head Tube Angle||67.5°||67.5°||67.5°|
|Head Tube Length||100mm||100mm||125mm|
|Seat Tube Angle||75.8°||75.5°||75.1°|
|Seat Tube Length||380mm||410mm||455mm|
|Top Tube Length, Horizontal||570mm||593mm||624mm|