Online cycling tools

Free tools for better rides.

Check pressure, fit, gearing, and ride fuel. Each result is a starting point you can adjust on the bike.

Pressure

Tyres

Fit

Position

Gearing

Cadence

Fuel

Bottles

These calculators give you a starting point. Try the result on your bike and adjust what does not feel right.

Tyres and wheels

Tyre Pressure Calculator

Start from rider weight, tyre width, rim width, and surface.

Fit baseline

Estimate saddle height, frame range, reach, and cockpit size.

Drivetrain choice

Check how a chainring, cassette, or tyre change affects speed.

Ride fuel

Plan what to carry for carbs, bottles, sodium, and ride length.

Next step

Send us the result and tell us what feels wrong.

Updates

Sent occasionally.