2018 Trek Émonda SL Disc Frameset vs 2016 Specialized Roubaix SL4 Expert Disc UDi2

What changes on the Specialized Roubaix SL4 Expert Disc UDi2

Compared with the Trek Émonda SL Disc Frameset in 56, the Specialized Roubaix SL4 Expert Disc UDi2 in 52.0 places the top of the head tube 30 mm lower and 8 mm further back, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.

Frame stack

−30 mm

Lower front end

Frame reach

−8 mm

Shorter frame reach

Wheelbase

+7 mm

Longer: steadier at speed

Head angle

−1.5°

Slacker: calmer steering

Chainstays

+2 mm

About the same

The two frames

We can't draw these frames yet. The Trek Émonda SL Disc Frameset numbers we have for size 56 are missing the seat angle. The numbers below still compare.

Geometry side by side

Differences are the Specialized Roubaix SL4 Expert Disc UDi2 minus the Trek Émonda SL Disc Frameset. Full charts: 2018 Trek Émonda SL Disc Frameset, 2016 Specialized Roubaix SL4 Expert Disc UDi2.

Where each sits in its class

Trek Émonda SL Disc FramesetSpecialized Roubaix SL4 Expert Disc UDi2

Each bike is ranked against the other road 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.