2025 Giant Fathom vs 2024 Merida Big Trail

What changes on the Merida Big Trail

Compared with the Giant Fathom in M, the Merida Big Trail in S places the top of the head tube 14 mm higher and 30 mm further back, relative to the bottom bracket. Its wheelbase is 27 mm shorter, which can contribute to quicker direction changes.

Frame stack

+14 mm

Higher front end

Frame reach

−30 mm

Shorter frame reach

Wheelbase

−27 mm

Shorter: quicker to change direction

Head angle

−0.5°

Slacker: calmer steering

Chainstays

n/a

One of the bikes has no number for this

The two frames

We can't draw these frames yet. The Giant Fathom numbers we have for size M are missing the chainstay length. The numbers below still compare.

Geometry side by side

Differences are the Merida Big Trail minus the Giant Fathom. Full charts: 2025 Giant Fathom, 2024 Merida Big Trail.

Where each sits in its class

Giant FathomMerida Big Trail

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.