2015 Trek Superfly 9.9 SL vs 2017 Specialized Epic FSR Comp

What changes on the Specialized Epic FSR Comp

Compared with the Trek Superfly 9.9 SL in L, the Specialized Epic FSR Comp in S places the top of the head tube 16 mm lower and 33 mm further back, relative to the bottom bracket. Its wheelbase is 45 mm shorter, which can contribute to quicker direction changes.

Frame stack

−16 mm

Lower front end

Frame reach

−33 mm

Shorter frame reach

Wheelbase

−45 mm

Shorter: quicker to change direction

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 9.9 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 9.9 SL. Full charts: 2015 Trek Superfly 9.9 SL, 2017 Specialized Epic FSR Comp.

Where each sits in its class

Trek Superfly 9.9 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.