PSI Zone tire pressure calculator

Rider-first tire pressure calculator

Start with the numbers you actually know, choose your ride setup, and get one clear front and rear recommendation. Bike type handles the hidden assumptions, and advanced tuning stays available when your setup is outside the norm.

Build Your Setup

Simple inputs first, with assumption controls available when you need them.

US units only
Rider weight lb

Enter your body weight. Bike and gear weight are estimated from bike type and can be adjusted in advanced assumptions.

Bike type

Bike type sets the default bike weight and front-to-rear weight balance.

Surface to optimize for

Choose the surface you want to optimize for. Results also show how the recommendation changes on the other two.

Tire width mm

Tire width has a strong effect on pressure. Choose the tire you ride most often.

Wheel size

Wheel size has a smaller effect than tire width, but it still helps refine the recommendation.

Tread style

Choose the tread pattern that most closely matches your tire.

Setup

Tubeless setups can usually run slightly lower pressure. Tube-type setups get a small protection buffer.

Typical speed mph

Pick the speed range that best matches your typical ride pace.

Advanced assumptions

Bike type sets the starting assumptions. Adjust these values if your setup is unusually light, heavy, or front-biased.

Riding posture

Used to seed front/rear balance. More aggressive puts a little more load over the front wheel.

Added bike + gear weight lb

Starts from the bike type preset. Adjust if your bike or carrying load is significantly above or below average.

Front wheel weight bias %

Set the front wheel share only. The rear value updates automatically from the remainder.

44% front / 56% rear
Returns posture, added weight, and weight balance to the selected bike's default settings.