Quiver

2026 Trek Fuel EX vs 2025 Specialized Enduro

The Specialized Enduro size closest to your L is the S4. Compare the S4 instead

What changes on the Specialized Enduro

Compared with the Trek Fuel EX in L, the Specialized Enduro in S4 (Low) places the top of the head tube 9 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 12 mm longer, which can contribute to stability at speed.

Frame stack
−9 mm
Lower front end
Frame reach
+2 mm
About the same reach
Wheelbase
+12 mm
Longer: steadier at speed
Head angle
n/a
One of the bikes has no number for this
Chainstays
±0 mm
About the same

The two frames

2026 Trek Fuel EX (L)The Trek Fuel EX frame drawn to scale.J 1262

Only the Trek Fuel EX is drawn. The Specialized Enduro numbers we have for size S4 (Low) are missing the head angle.

Geometry side by side

MeasurementTrek Fuel EX LSpecialized Enduro S4 (Low)Difference
Reach485487mm+2 mm
Stack638629mm−9 mm
Head tube angle64.5not listed
Seat tube angle77.476°−1.4°
Effective top tube617644mm+27 mm
Chainstay length442442mm±0 mm
Wheelbase12621274mm+12 mm
BB drop35not listed
BB height339not listed
Seat tube length420440mm+20 mm
Head tube length125110mm−15 mm
Fork lengthnot listed581mm

Differences are the Specialized Enduro minus the Trek Fuel EX. Full charts: 2026 Trek Fuel EX, 2025 Specialized Enduro.

Where each sits in its class

Trek Fuel EXSpecialized Enduro

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 EX5Specialized EnduroS-Works
FrameTrek Fuel EXnot listed
ForkRockShox Recon Silver RLnot listed
Rear shockX-Fusion Pro 2RockShox Vivid Ultimate
ShifterShimano Deore M6100not listed
DerailleurShimano Deore M6100not listed
CassetteShimano Deore M6100not listed
ChainShimano Deore M6100not listed
CranksetShimano MT512not listed
ChainringShimano MT512not listed
Bottom bracketShimano MT501not listed
WheelsetBontrager Line TLR 30not listed
TireBontrager Gunnison Elite XRnot listed
RimBontrager Line TLR 30not listed
BrakeShimano MT200not listed
RotorShimano SM-RT10not listed
HandlebarBontrager Compnot listed
StemBontrager Compnot listed
GripsTrek Linenot listed
HeadsetTrek ZS Headsetnot listed
Dropper postTranzX JD-YSI34not listed
SeatpostTranzX JD-YSI34not listed
SaddleTrek Verse Shortnot listed

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