2016 Trek Fuel EX 9.8 27.5 vs 2018 Specialized Stumpjumper ST Women's Alloy 27.5

What changes on the Specialized Stumpjumper ST Women's Alloy 27.5

Compared with the Trek Fuel EX 9.8 27.5 in ML, the Specialized Stumpjumper ST Women's Alloy 27.5 in L places the top of the head tube 44 mm higher and 33 mm further forward, relative to the bottom bracket. Its wheelbase is 48 mm longer, which can contribute to stability at speed.

Frame stack

+44 mm

Higher front end

Frame reach

+33 mm

Longer frame reach

Wheelbase

+48 mm

Longer: steadier at speed

Head angle

−1.5°

Slacker: calmer steering

Chainstays

−1 mm

About the same

The two frames

We can't draw these frames yet. The Trek Fuel EX 9.8 27.5 numbers we have for size ML are missing the seat angle. The numbers below still compare.

Geometry side by side

Differences are the Specialized Stumpjumper ST Women's Alloy 27.5 minus the Trek Fuel EX 9.8 27.5. Full charts: 2016 Trek Fuel EX 9.8 27.5, 2018 Specialized Stumpjumper ST Women's Alloy 27.5.

Where each sits in its class

Trek Fuel EX 9.8 27.5Specialized Stumpjumper ST Women's Alloy 27.5

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.