2015 Trek Superfly 9.9 SL vs 2017 Trek X-Caliber

What changes on the Trek X-Caliber

Compared with the Trek Superfly 9.9 SL in L, the Trek X-Caliber in XS places the top of the head tube 38 mm lower and 74 mm further back, relative to the bottom bracket. Its wheelbase is 94 mm shorter, which can contribute to quicker direction changes.

Frame stack

−38 mm

Lower front end

Frame reach

−74 mm

Shorter frame reach

Wheelbase

−94 mm

Shorter: quicker to change direction

Head angle

−0.6°

Slacker: calmer steering

Chainstays

−7 mm

Shorter: livelier

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 Trek X-Caliber minus the Trek Superfly 9.9 SL. Full charts: 2015 Trek Superfly 9.9 SL, 2017 Trek X-Caliber.

Where each sits in its class

Trek Superfly 9.9 SLTrek X-Caliber

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.