Tire Pressure Calculator
Don't guess. Calculate the optimal pressure for your specific rim width, casing, and terrain.
System Details
lbs
lbs
Tire & Rim
mm
mm
Conditions
Recommended Pressure
Optimized for speed & grip balance
Model confidence: Higher confidence on smoother surfaces. Start here, then fine-tune from ride feedback.
Front Tire
71.5psi
5686
Min: 64.3Max: 78.6
Rear Tire
85.6psi
71101
Min: 77.1Max: 94.2
Ride feedback loop (verification pending)
0 entries for this profile
Event mode pressure sets
Max GripBalancedMax Speed
Balanced setup for mixed riding.
Confidence drops as terrain gets rougher or setup gets more extreme.
Rim Width Matters
Your 21mm rims make your 28mm tires behave like 29mm tires. We've adjusted for this.
Temperature
Tires gain ~1 psi (0.07 bar) per 10°F (5°C) increase. Check pressures before riding in the ambient temp you'll ride in.