Find Your Perfect Bike Tire Pressure
Dial in the ideal PSI for your weight, tire width, and riding style. Improve comfort, grip, and puncture resistance on any terrain.
Calculate NowTire Pressure Calculator
How We Calculate Optimal Pressure
Weight Distribution
We assume ~55% of rider + bike weight on the rear wheel and 45% on the front for typical riding positions.
Tire Volume Factor
Wider tires have a larger air volume and require lower pressure to support the same load. Our formula accounts for this non-linear relationship.
Terrain Adjustment
Road surfaces favor higher pressure for low rolling resistance. Gravel and MTB terrains require lower pressure for traction and comfort.
Pressure Tips for Every Ride
Road Cycling
Higher pressure (80–130 psi) reduces rolling resistance on smooth tarmac. But going too high can cause a harsh ride and loss of cornering grip. Consider dropping 5–10 psi in wet conditions.
Gravel & Adventure
Aim for 30–50 psi depending on tire width. Lower pressure improves comfort and traction on loose surfaces. Tubeless setups allow even lower pressures without pinch flats.
Mountain Biking
Typical range: 18–30 psi. Lower pressure conforms to rocks and roots, enhancing grip. Add a few psi for heavier riders or aggressive descending to prevent rim strikes.
Frequently Asked Questions
Why is tire pressure so important?
Proper tire pressure affects rolling resistance, comfort, traction, and puncture risk. Too high reduces grip and comfort; too low increases rolling resistance and risk of pinch flats or rim damage.
Should I use the same pressure front and rear?
Usually no. The rear tire carries more weight, so it needs slightly higher pressure. Our calculator gives separate recommendations for front and rear.
How does tubeless affect pressure?
Tubeless tires can be run at lower pressures without the risk of pinch flats, improving traction and comfort. Our calculator adjusts for tubeless setups.
What if I'm between two pressures?
Start with the calculated value and adjust based on feel. If the ride feels harsh, drop 2–3 psi. If the tire feels squirmy in corners, add 2–3 psi.