Sorry! Specialized Men's Stumpjumper ST 29 is no longer available.

Men's Stumpjumper ST 29


Gloss/East Sierras/Rocket Red



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Alloy loyalists rejoice! The new Stumpjumper ST Alloy 29 represents a short-travel frame with all the agility of its S-Works older brothers. Radical new shape designs and exciting new tube profiles promise to grant riders a trail bike experience like no other.

Nothing is purer than the simple bond between a rider and their bike, a telepathic connection between human and machine creating an exhilarating ride experience. This connection is something we set out to achieve with the new Stumpjumper, in the hope that it would live up to the acclaimed title of ultimate trail bike'. We found that the key to rider-bike telepathy is stiffness, so we focused in on the shapes and materials of the frame that would allow us to get to work on achieving such stiffness.

Though suspension and stiffness are sometimes thought of as counteracting forces, a balance between the two features is vital in the pursuit of ultimate' trail bike credibility. A custom Rx Trail Tune on both the fork and rear shock lets the rider fine-tune their ride, with a specific Rx Tune for each wheel size platform to accommodate even the pickiest of riders. Whatever wheel size you choose, the Rx Tune will ensure you'll get perfectly linear suspension every time.

Major efforts have been made to make this bike not just great fun, but also a constant and flexible companion. We've brought back the threaded bottom bracket and made room for a 3.0 tyre, ensuring that you get the most versatility out of your new trail bike. The components of the Stumpy are also easily upgradable, none more so than standard metric shocks that allow complete freedom when considering future rear shock upgrades.

Want to dial in your Stumpjumper ST Alloy 29 to suit your personal riding style Just flick the Flip Chip and you'll drop your bottom bracket and slacken the head tube in no time, perfect when navigating the more technical bends and berms on your favourite trail. A ribbed chain stay protector assures peace of mind, anger-inducing chain slaps now a thing of the past.

If high-performance at an attainable budget is your kind of thing, the Stumpy ST is the perfect alloy alternative to keep the everyman smiling from one trail to the next. The Shimano SLX front and rear derailleurs, a custom X-Fusion 02 Pro RL rear shock boasting 120mm of travel, and wide alloy wheels all come together to create an impressive but affordable build that it is impossible to turn down.

FRAMEM5 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
FORKRockShox Recon RL, Solo Air, 51mm offset, rebound adjust, lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 130mm of travel
REAR SHOCKX-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, pedal platform, 190x42.5mm
FRONT HUBSpecialized, sealed cartridge bearings, 15x110mm spacing, 32h
REAR HUBSpecialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
SPOKESStainless, 14g
RIMSDouble-wall, 27mm internal width
INNER TUBESStandard, Presta valve
FRONT TYREButcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"
REAR TYREPurgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.3"
CRANKSETSRAM NX, Boost™, direct-mount XSYNC, Powerspline
SHIFT LEVERSShimano SLX, 11-speed
REAR DERAILLEURShimano SLX, Shadow Plus, 11-speed
CASSETTESunRace, 11-speed, 11-46t
CHAINKMC X11, 11-speed w/ Missing Link™
FRONT BRAKETektro Gemini Comp, hydraulic disc, resin pad, 200mm
REAR BRAKETektro Gemini Comp, hydraulic disc, resin pad, 180mm
HANDLEBARSSpecialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
GRIPSSpecialized Sip Grip, half-waffle, slip-on
STEMSpecialized, 3D-forged alloy, 4-bolt, 7-degree rise
SADDLEBody Geometry Henge Sport, steel rails, 143mm
SEATPOSTSpecialized 2-bolt head, forged alloy, 5mm offset, micro-adjust, 34.9mm
SEAT BINDERSpecialized bolt-type, alloy, 38.6mm
PEDALSSpecialized Dirt

Please note: Manufacturers can sometimes change the specification of the products from time to time.

Size S M L XL
BB Drop 39mm 39mm 39mm 39mm
BB Height 333mm 333mm 333mm 333mm
Bike Standover Height 750mm 756mm 769mm 770mm
Chainstay Length 437mm 437mm 437mm 437mm
Fork Length, Full 540mm 540mm 540mm 540mm
Fork Rake/Offset 51mm 51mm 51mm 51mm
Front Center 708mm 728mm 758mm 789mm
Head Tube Angle 67.5° 67.5° 67.5° 67.5°
Head Tube Length 100mm 100mm 125mm 140mm
Reach 415mm 435mm 455mm 480mm
Seat Tube Angle 75.8° 75.5° 75.1° 74.7°
Seat Tube Length 380mm 410mm 455mm 505mm
Stack 612mm 612mm 635mm 649mm
Top Tube Length, Horizontal 570mm 593mm 624mm 657mm
Trail 99mm 99mm 99mm 99mm
Wheelbase 1143mm 1163mm 1192mm 1223mm