Tools

Tire Pressure Calculator

A free starting pressure for road, gravel, MTB, plus and fat bikes — front and rear, with hookless rim limits built in. How this works →

Your bike

Include everything you carry: water (a full bottle ≈ 1.6 lb, a 2 L hydration pack ≈ 5 lb), tools, bags and bikepacking gear.

Rider weight (with gear), lb

Bike weight, lb

Tire width, mm

Surface

Setup

Starting pressure 

Enter your weight and tire to see a starting pressure.

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