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Specialized Stumpjumper ST Expert 29 Men's Mountain Bike

  • With 130mm front /120mm rear and a slightly steeper geometry the ST does it all on the trails
  • Asymmetrical Fact 11m carbon-fibre frame offers incredible levels of stiffness & responsiveness
  • SRAM GX1 Eagle drivetrain and Roval Traverse Carbon 29" wheels are the complete package
  • Three different compression adjustments - Open,Pedal & Lock ensures performance on every trail



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Specialized Stumpjumper ST Expert 29 Men's Mountain Bike

Specialized created the Expert model to offer a class that is a cut above the rest in terms of the componentry that the bike is fitted with. Built in a 29" wheel design the angle of attack between the bike and the rocks is now less sharp, increasing comfort. The Short-Travel edition (ST) reduces the amount of travel at the front at the back which in turn provides a more nimble and sharper ride that is harder in acceleration and performs better on long climbs. The frame used is still the same asymmetrical Fact 11m carbon-fibre frame featured on the Stumpjumper and offers superb levels of stiffness and responsiveness whilst remaining lightweight and saving 20% efficiency in power transfer in comparison to the previous Stumpjumper frame. However, with the Expert, you can expect componentry designed to provide the complete package. RockShox's Pike fork offers 130mm of front suspension and with RockShox Deluxe RT3 at the back, you have three different compression options - Open, Pedal and Lock ensuring great performance on every terrain and trail. 

Full Specification



The Stumpjumper's asymmetrical, FACT 11m carbon-fibre construction is lightweight, stiff, and ready to take on the trail. It's built with Specialized's 29 Trail Geometry, so it's just the right amount of both capable and comfortable. And with SWAT™ integration in the down tube, a threaded BB, easy cable routing, and an all-new chain silencer, it's ready for anything the trail, or you, throw at it.


Compression Adjustment 

With three different compression adjustments—open/pedal/lock—incredible damping performance, and our Rx Trail Tune, the RockShox Deluxe RT3 perfectly complements the Stumpjumper.



RockShox's Pike is known for its trail performance, and the RC found here has stiff stanchions, a Charger damper, and plenty of sensitivity.



Frame: FACT 11m, full carbon chassis and rear end, asymmetrical design, 29 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 120mm of travel

Seat Binder: Specialized bolt-type, alloy, 38.6mm



Fork: RockShox Pike RC, DebonAir, rebound/low-speed compression adjust, tapered steerer, 46mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 130mm of travel

Rear Shock: RockShox Deluxe RT3, Rx Trail Tune, rebound and 3-position compression adjust, 190x42.5mm



Front Tyre: Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 29 x 2.3"

Rear Tyre: Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 29 x 2.3"



Crankset: FC DESC 6K EAGLE B148 24MM 170 BLK 32

Chainrings: 32T

Bottom Bracket: SRAM GXP

Shift Levers: SRAM GX Eagle, trigger, 12-speed

Rear Derailleur: SRAM GX Eagle, 12-speed

Cassette: SRAM GX Eagle, 12-speed, 10-50t

Chain: SRAM GX Eagle, 12-speed w/ PowerLock®



Front Brake: SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston calliper, 200mm rotor

Rear Brake: SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston calliper, 180mm rotor



Handlebars: Specialized Trail, 7050 alloys, 8-degree back sweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp

Grips: Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness

Stem: Specialized Trail, forged alloy, 4-bolt, 5mm rise

Saddle: Body Geometry Phenom Comp, Adaptive Edge design, hollow Cr-Mo rails, 143mm

Seatpost: Command Post IRcc, 16-position micro-height adjustable, two-bolt head, bottom mount cable routing, remote SRL lever, 34.9mm, S: 130mm, M/L/XL: 160mm of travel



Pedals: Specialized Dirt

Size Guide