2015 Trek Superfly 9.8 SL vs 2017 Specialized Epic FSR Comp

What changes on the Specialized Epic FSR Comp

Compared with the Trek Superfly 9.8 SL in L, the Specialized Epic FSR Comp in XL places the top of the head tube 31 mm higher and 36 mm further forward, relative to the bottom bracket. Its wheelbase is 41 mm longer, which can contribute to stability at speed.

Frame stack

+31 mm

Higher front end

Frame reach

+36 mm

Longer frame reach

Wheelbase

+41 mm

Longer: steadier at speed

Head angle

+0.9°

Steeper: sharper steering

Chainstays

+3 mm

Longer: more planted

The two frames

We can't draw these frames yet. The Trek Superfly 9.8 SL numbers we have for size L are missing the seat angle. The numbers below still compare.

Geometry side by side

Differences are the Specialized Epic FSR Comp minus the Trek Superfly 9.8 SL. Full charts: 2015 Trek Superfly 9.8 SL, 2017 Specialized Epic FSR Comp.

Where each sits in its class

Trek Superfly 9.8 SLSpecialized Epic FSR Comp

Each bike is ranked against the other XC 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.