Quiver

2020 Specialized Fuse Comp 29 vs 2020 Specialized Stumpjumper ST Alloy 29

The M is the Specialized Stumpjumper ST Alloy 29 size closest to your M Specialized Fuse Comp 29. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.

What changes on the Specialized Stumpjumper ST Alloy 29

Compared with the Specialized Fuse Comp 29 in M, the Specialized Stumpjumper ST Alloy 29 in M places the top of the head tube 6 mm lower and 15 mm further back, relative to the bottom bracket. Its wheelbase is 9 mm longer, which can contribute to stability at speed.

Frame stack
−6 mm
Lower front end
Frame reach
−15 mm
Shorter frame reach
Wheelbase
+9 mm
Longer: steadier at speed
Head angle
±0.0°
About the same head angle
Chainstays
n/a
One of the bikes has no number for this

The two frames

We can't draw these frames yet. The Specialized Fuse Comp 29 numbers we have for size M are missing the chainstay length. The numbers below still compare.

Geometry side by side

MeasurementSpecialized Fuse Comp 29 MSpecialized Stumpjumper ST Alloy 29 MDifference
Reach440mm425mm−15 mm
Stack625mm619mm−6 mm
Head tube angle66.5°66.5°±0.0°
Seat tube angle74°74.5°+0.5°
Wheelbase1162mm1171mm+9 mm
Standover750mm762mm+12 mm
Seat tube length410mm410mm±0 mm
Fork length540mm560mm+20 mm
Head tube length95mm100mm+5 mm
Chainstay lengthnot listed437mm
BB dropnot listed33mm
BB heightnot listed341mm

Differences are the Specialized Stumpjumper ST Alloy 29 minus the Specialized Fuse Comp 29. Full charts: 2020 Specialized Fuse Comp 29, 2020 Specialized Stumpjumper ST Alloy 29.

Where each sits in its class

Specialized Fuse Comp 29Specialized Stumpjumper ST Alloy 29

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 Fuse Comp 29Comp 29Specialized Stumpjumper ST Alloy 29
ForkRockShox Recon RLnot listed
ShifterSRAM SX Eaglenot listed
DerailleurSRAM SX Eaglenot listed
CassetteSRAM SX Eaglenot listed
ChainSRAM SX Eaglenot listed
CranksetSRAM SX Eaglenot listed
Bottom bracketSRAM PowerSplinenot listed
TireSpecialized Butcher, Specialized Purgatorynot listed
HandlebarSpecialized Stoutnot listed
StemSpecialized Stoutnot listed
SeatpostTranzX Droppernot listed
SaddleSpecialized Bridgenot listed

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