2021 Specialized Stumpjumper Comp Alloy

The 2021 Specialized Stumpjumper Comp Alloy is a 29″ aluminum frame full suspension trail bike with high-end components.

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2021 Specialized Stumpjumper Comp Alloy
  • MSRP $3,400
  • Front Travel 140mm
  • Rear Travel 130mm
  • Frame Aluminum
  • Fork Fox Rhythm Float 34
  • Wheels 29″
  • Drivetrain 1 × 12
  • Groupset NX Eagle
  • Brakes Hydraulic Disc
  • Seatpost Dropper post
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1 × 12 — 12 speed

2021 Specialized Stumpjumper Comp Alloy
24 mph
Similar Bikes
26 mph

The Stumpjumper Comp Alloy is easier to ride up hills than similar bikes.

The Stumpjumper Comp Alloy won‘t keep up with similar bikes while riding downhill or sprinting.

Estimated Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more. Learn more

Spec level →$0$500$1,000$1,500$2,000$2,500$3,000
This bike
Other trail bikes



FrameAlloy chassis and rear-end, asymmetrical design, 29 Trail Geometry, horst pivot BB adjustment, threaded BB, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel
ForkFOX FLOAT 34 Rhythm, GRIP damper, two position Sweep adjustment, 15x110mm QR axle, 44mm offset,140mm of travel
Rear ShockFOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, S1:190x42.5mm, S2-S6: 190x45mm
Bottom BracketSRAM DUB, BSA 73mm, Threaded
StemAlloy Trail Stem, 35mm bar bore
HandlebarSpecialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 800mm width
SaddleBridge Comp, Hollow Cr-mo rails, 155/143mm
SeatpostX-Fusion Manic, infinite adjustable, remote SRL LE lever, 34.9 (S1:100mm, S2: 125mm, S3: 150mm, S4/S5: 170mm, S6: 190mm)
Rear DerailleurSRAM NX Eagle, 12-speed
CrankSRAM NX Eagle, DUB, S1:165mm, S2-S5: 170mm, S6: 175mm, Steel, 30T
ShiftersSRAM NX Eagle, trigger, 12-speed
CassetteSRAM NX Eagle, 12-speed, 11-50t
ChainSRAM NX Eagle, 12-speed
BrakesSRAM G2 R, 4-piston caliper, hydraulic disc, 200mm
RimsRoval 29, hookless alloy, 30mm inner width, tubeless ready
SpokesDT Swiss Industry
Front HubAlloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
Rear HubAlloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
TiresButcher, GRID casing, GRIPTON® compound, 29x2.3"
2021 Specialized Stumpjumper Comp Alloy