2015 Specialized Demo II vs 2015 Trek Session 9.8 Park 26

What changes on the Trek Session 9.8 Park 26

Compared with the Specialized Demo II in X-Long, the Trek Session 9.8 Park 26 in M places the top of the head tube 28 mm lower and 58 mm further back, relative to the bottom bracket. Its wheelbase is 75 mm shorter, which can contribute to quicker direction changes.

Frame stack

−28 mm

Lower front end

Frame reach

−58 mm

Shorter frame reach

Wheelbase

−75 mm

Shorter: quicker to change direction

Head angle

+0.7°

Steeper: sharper steering

Chainstays

−12 mm

Shorter: livelier

The two frames

Only the Specialized Demo II is drawn. The Trek Session 9.8 Park 26 numbers we have for size M are missing the seat angle.

Geometry side by side

Differences are the Trek Session 9.8 Park 26 minus the Specialized Demo II. Full charts: 2015 Specialized Demo II, 2015 Trek Session 9.8 Park 26.

Where each sits in its class

Specialized Demo IITrek Session 9.8 Park 26

Each bike is ranked against the other downhill 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.