2023 Trek FX Gen 3 vs 2025 Kona Sutra

What changes on the Kona Sutra

Compared with the Trek FX Gen 3 in M, the Kona Sutra in 48 places the top of the head tube 6 mm lower and 22 mm further back, relative to the bottom bracket. Its wheelbase is 24 mm shorter, which can contribute to quicker direction changes.

Frame stack

−6 mm

Lower front end

Frame reach

−22 mm

Shorter frame reach

Wheelbase

−24 mm

Shorter: quicker to change direction

Head angle

−1.0°

Slacker: calmer steering

Chainstays

−5 mm

Shorter: livelier

The two frames

We can't draw these frames yet. The Trek FX Gen 3 numbers we have for size M are missing the seat angle. The numbers below still compare.

Geometry side by side

Differences are the Kona Sutra minus the Trek FX Gen 3. Full charts: 2023 Trek FX Gen 3, 2025 Kona Sutra.

Where each sits in its class

Trek FX Gen 3Kona Sutra

Each bike is ranked against the other gravel 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.