Dialed MTB with Lee McCormack

Dialed MTB with Lee McCormack

Fit & Geometry

Switching to bigger wheels

Tips for making the move from 27.5 to 29 — and 29 to 32

Sep 29, 2026
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Our friend Sarah asked via Substack DM:

I’m thinking of getting a more XC bike in addition to the 27.5 trail bike I have and am wondering what the riding, handling, and pedaling changes would be on a 29? What would I need to do for fitness training with a larger wheel?

Right on! That was a common question when bikes migrated to 29-inch wheels, and it’ll come up again as riders “widen their radius” to 32-inch wheels. Here’s what you need to know:

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