Section 01
Find your optimal pressure
Weight, tire width, and terrain all matter. Heavier systems need more support, wider tires can run lower pressures, and mixed surfaces often benefit from a more forgiving setup.
Optimal Pressure Calculator
85 kg
38 mm
Terrain Type
Recommended Pressure
84PSI
(5.8 bar)
Comfort23%
Speed96%
Puncture Resistance67%
Pro Tip
Check pressure weekly! Temperature changes affect it significantly. Lower pressure = more comfort and grip. Higher pressure = less rolling resistance and faster speeds.
Starting rule
Begin at the recommended value, then move in small steps. If the ride feels harsh, back off slightly. If it feels sluggish, add pressure carefully.
Section 02
Rolling resistance impact
Pressure changes the shape of the tire and how much it deforms under load. That deformation can become real drag, especially when you are carrying weight or riding at commuting speeds.
Rolling Resistance Simulator
50 PSI
25 km/h
Rolling Force
3.9N
Power Lost
27W
Range Impact
114%
Physics
Under-inflated tires waste 27W of power at 25 km/h. That's energy you could use for going farther! Proper pressure can improve range by 10-15%.
Free speed
Proper pressure is one of the cheapest efficiency upgrades available because it affects every ride and requires almost no hardware.
FAQ
Quick answers
How often should I check tire pressure?
Weekly is a good baseline because tires naturally lose pressure over time and temperature swings also change PSI.
Should I use the max pressure on the tire sidewall?
No. That is the upper safety limit, not the universal performance target.
Does pressure affect puncture resistance?
Yes. Too low increases pinch-flat risk, but too high can also make the tire less forgiving on rough surfaces.
Do front and rear need different pressures?
Often yes. The rear usually carries more weight and therefore often benefits from slightly more pressure.
Summary
Bottom line
Tire pressure is small, repeatable maintenance with outsized impact on comfort, grip, and range.
Optimize
Use a calculated starting point instead of guessing.
Check weekly
Pressure drift is normal, so consistency matters.
Balance comfort and speed
Lower and higher pressures each have trade-offs.
Adjust to conditions
Cargo, terrain, and weather can all justify a change.