Stumpjumper ST Comp Alloy 29

2020 specialized Stumpjumper ST Comp Alloy 29





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Manufacturer Description

Die-hard aluminum fans rejoice. Our snappy and nimble Stumpjumper ST is available in M5 alloy. It’s perfect for riders seeking a quick and capable all-rounder. The Stumpjumper ST Comp Alloy 29 ups the ante with full Fox suspension and reliable Shimano drivetrain. THE ULTIMATE TRAIL BIKE The innovative sidearm frame design makes a lighter, better-handling bike. By directly connecting all three mounting points of the rear-end and shock to the frame, we’ve increased both stiffness and performance over bumps. End result? Total control. PERFECTLY-BALANCED SUSPENSION Our in-house suspension-tuning team develops custom shock tunes, perfectly paired to each bike’s kinematics. We call this Rx Tune and while it’s not the easy way to build a suspension bike, it’s worth it. You feel Rx Tune as perfectly-balanced suspension. A NO-NONSENSE BUILD • Sidearm frame design offers balanced stiffness and precise handling. • The FOX DPS Performance rear shock equals perfectly dialed rear-suspension. • FOX FLOAT Rhythm 34 fork with 130mm of travel offers great adjustabiity.

Build Kit

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
ForkFOX FLOAT RHYTHM, 34, GRIP damper, 51mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 130mm of travel
Rear ShockFOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 190x42.5MM
GripsSpecialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
HandlebarsSpecialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 31.8mm clamp, XS 720mm, S-XL 750mm,
SaddleBody Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
SeatpostX-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, S: 125mm, M/L: 150mm, XL: 170mm
StemSpecialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise
Front BrakesShimano MT-501, hydraulic disc, resin pad
Rear BrakesShimano MT-501, hydraulic disc, resin pad
Bottom BracketThreaded BB, 24mm spindle
CassetteShimano SLX, 11-speed, 11-46t
Chain RingsSteel, 30T
CranksetRace Face Ride, 170mm
Front Derailleur-
Rear DerailleurShimano SLX, Shadow Plus, 11-speed
ShiftersShimano SLX, 11-speed
Front HubSpecialized, sealed cartridge bearings, 15x110mm thru-axle, 32h
Rear HubSpecialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
SpokesStainless, 14g
Front TireEliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3
Rear TirePurgatory, GRID Casing, GRIPTON® compound, 29x2.3
TubesStandard, Presta valve
Front WheelDouble-wall alloy, 27mm internal width
Rear WheelDouble-wall alloy, 27mm internal width


BB Drop ?----
BB Height ?----
Chainstay Length ?----
Crank Length170170170170
Fork Length----
Fork Rake Offset ?51mm51mm51mm
Front Center----
Handlebar Width780mm780mm780mm780mm
Headtube Angle ?----
Headtube Length ?----
Reach ?415mm435mm455mm
Saddle Width143mm143mm143mm143mm
Seatpost Length375438438478
Seat Tube Angle ?----
Seat Tube Length ?----
Stack ?612mm612mm635mm
Standover Height----
Stem Length45454545
Top Tube Length ?----
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