Quiver

2018 Trek Fuel EX Women's vs 2020 Specialized Fuse M4

The XS is the Specialized Fuse M4 size closest to your XS Trek Fuel EX Women's. 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 Fuse M4

Compared with the Trek Fuel EX Women's in XS, the Specialized Fuse M4 in XS places the top of the head tube 59 mm higher and 18 mm further forward, relative to the bottom bracket. Its wheelbase is 36 mm longer, which can contribute to stability at speed.

Frame stack
+59 mm
Higher front end
Frame reach
+18 mm
Longer frame reach
Wheelbase
+36 mm
Longer: steadier at speed
Head angle
−1.2°
Slacker: calmer steering
Chainstays
n/a
One of the bikes has no number for this

The two frames

2018 Trek Fuel EX Women's (XS)The Trek Fuel EX Women's frame drawn to scale.J 1086

Only the Trek Fuel EX Women's is drawn. The Specialized Fuse M4 numbers we have for size XS are missing the chainstay length.

Geometry side by side

MeasurementTrek Fuel EX Women's XSSpecialized Fuse M4 XSDifference
Reach382400mm+18 mm
Stack566625mm+59 mm
Head tube angle67.7°66.5°−1.2°
Seat tube angle74.2°74°−0.2°
Effective top tube542not listed
Chainstay length433not listed
Wheelbase10861122mm+36 mm
BB drop12not listed
BB height338not listed
Standover691727mm+36 mm
Seat tube length356340mm−16 mm
Head tube length9095mm+5 mm
Fork lengthnot listed540mm

Differences are the Specialized Fuse M4 minus the Trek Fuel EX Women's. Full charts: 2018 Trek Fuel EX Women's, 2020 Specialized Fuse M4.

Where each sits in its class

Trek Fuel EX Women'sSpecialized Fuse M4

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.

PartTrek Fuel EX Women's5 Women'sSpecialized Fuse M4
FrameTrek Alpha Platinumnot listed
ForkRockShox Reconnot listed
ShifterShimano Deore M6000not listed
DerailleurShimano Deore M6020, Shimano Deore M6000not listed
CassetteShimano HG500not listed
ChainKMC X10not listed
Bottom bracketTrek PF92not listed
WheelsetFormula DC511not listed
TireSchwalbe Nobby Nic Performancenot listed
HubFormula DC-511, Bontrager Boost148not listed
RimSun Ringlé Duroc 40 SLnot listed
BrakeShimano Acera M315not listed
StemBontrager Rhythmnot listed
HeadsetTrek Knock Blocknot listed
SeatpostBontrager SSRnot listed
SaddleBontrager Evoke 1.5not listed

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