2026 State Bicycle Co 4130 Trail vs 2026 Trek Roscoe Gen 4

What changes on the Trek Roscoe Gen 4

Compared with the State Bicycle Co 4130 Trail in XL, the Trek Roscoe Gen 4 in ML places the top of the head tube 7 mm lower and 35 mm further back, relative to the bottom bracket. Its wheelbase is 38 mm shorter, which can contribute to quicker direction changes.

Frame stack

−8 mm

Lower front end

Frame reach

−35 mm

Shorter frame reach

Wheelbase

−38 mm

Shorter: quicker to change direction

Head angle

±0.0°

About the same head angle

Chainstays

n/a

One of the bikes has no number for this

The two frames

We can't draw these frames yet. The State Bicycle Co 4130 Trail numbers we have for size XL are missing the chainstay length. The numbers below still compare.

Geometry side by side

Differences are the Trek Roscoe Gen 4 minus the State Bicycle Co 4130 Trail. Full charts: 2026 State Bicycle Co 4130 Trail, 2026 Trek Roscoe Gen 4.

Where each sits in its class

State Bicycle Co 4130 TrailTrek Roscoe Gen 4

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.