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2016 Trek Fuel EX 29 Alloy Frameset vs 2015 Specialized Stumpjumper FSR EVO 650b

The M is the Specialized Stumpjumper FSR EVO 650b size closest to your ML Trek Fuel EX 29 Alloy Frameset. 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 FSR EVO 650b

Compared with the Trek Fuel EX 29 Alloy Frameset in ML, the Specialized Stumpjumper FSR EVO 650b in M places the top of the head tube 8 mm higher and 11 mm further back, relative to the bottom bracket. Its wheelbase is 14 mm shorter, which can contribute to quicker direction changes.

Frame stack
+8 mm
Higher front end
Frame reach
−11 mm
Shorter frame reach
Wheelbase
−14 mm
Shorter: quicker to change direction
Head angle
−0.8°
Slacker: calmer steering
Chainstays
−1 mm
About the same

The two frames

2016 Trek Fuel EX 29 Alloy Frameset (ML) and 2015 Specialized Stumpjumper FSR EVO 650b (M), lined up at the bottom bracketBoth frames drawn to scale. The Trek Fuel EX 29 Alloy Frameset is drawn in full with its measurements, and the Specialized Stumpjumper FSR EVO 650b is the colored outline on top.J 1151

Trek Fuel EX 29 Alloy Frameset, MLSpecialized Stumpjumper FSR EVO 650b, MDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementTrek Fuel EX 29 Alloy Frameset MLSpecialized Stumpjumper FSR EVO 650b MDifference
Reach437426mm−11 mm
Stack611619mm+8 mm
Head tube angle68.8°68°−0.8°
Seat tube angle73.6°74°+0.4°
Effective top tube617595mm−22 mm
Chainstay length436435mm−1 mm
Wheelbase11511137mm−14 mm
BB drop36not listed
BB height334327mm−7 mm
Standover780729mm−51 mm
Seat tube length445430mm−15 mm
Head tube length115not listed

Differences are the Specialized Stumpjumper FSR EVO 650b minus the Trek Fuel EX 29 Alloy Frameset. Full charts: 2016 Trek Fuel EX 29 Alloy Frameset, 2015 Specialized Stumpjumper FSR EVO 650b.

Where each sits in its class

Trek Fuel EX 29 Alloy FramesetSpecialized Stumpjumper FSR EVO 650b

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 29 Alloy Frameset29 Alloy FramesetSpecialized Stumpjumper FSR EVO 650b
FrameTrek Alpha Platinumnot listed
HeadsetFSA IS2not listed

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