Quiver

2015 Specialized Stumpjumper FSR 29 Frameset vs 2015 Trek Stache

The Trek Stache size closest to your M is the 19 in. Compare the 19 in instead

What changes on the Trek Stache

Compared with the Specialized Stumpjumper FSR 29 Frameset in M, the Trek Stache in 21 in places the top of the head tube 11 mm higher and 16 mm further forward, relative to the bottom bracket. Its wheelbase is 14 mm longer, which can contribute to stability at speed.

Frame stack
+11 mm
Higher front end
Frame reach
+16 mm
Longer frame reach
Wheelbase
+14 mm
Longer: steadier at speed
Head angle
−0.4°
Slacker: calmer steering
Chainstays
−5 mm
Shorter: livelier

The two frames

We can't draw these frames yet. The Specialized Stumpjumper FSR 29 Frameset numbers we have for size M are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementSpecialized Stumpjumper FSR 29 Frameset MTrek Stache 21 inDifference
Reach427mm443+16 mm
Stack614mm625+11 mm
Head tube angle69°68.6°−0.4°
Effective top tube596mm640+44 mm
Chainstay length450mm445−5 mm
Wheelbase1147mm1161+14 mm
BB drop34mmnot listed
BB height338mm316−22 mm
Standover741mm824+83 mm
Seat tube length430mm508+78 mm
Head tube length100mm118+18 mm

Differences are the Trek Stache minus the Specialized Stumpjumper FSR 29 Frameset. Full charts: 2015 Specialized Stumpjumper FSR 29 Frameset, 2015 Trek Stache.

Where each sits in its class

Specialized Stumpjumper FSR 29 FramesetTrek Stache

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.

What each ships with

The stock build of each bike's first listed trim. Parts that match are dimmed.

PartSpecialized Stumpjumper FSR 29 FramesetS-Works 29 FramesetTrek Stache7
Rear shockFox Brainnot listed
Dropper postSpecialized Command Post IRnot listed
Framenot listedTrek Alpha Platinum
Forknot listedRockShox Recon
Shifternot listedShimano Deore
Derailleurnot listedSRAM X-7, Shimano SLX
Cassettenot listedShimano HG50
Chainnot listedKMC X10
Tirenot listedBontrager XR3 Expert
Rimnot listedBontrager Duster Elite
Brakenot listedShimano Deore M447
Stemnot listedBontrager Rhythm
Headsetnot listedFSA NO.57E
Saddlenot listedBontrager Evoke 2

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

Explore the app
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet