Tyre Pressure Formula:
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Definition: This calculator estimates the optimal tyre pressure based on Continental's recommended calculations for bicycle tyres.
Purpose: It helps cyclists determine the proper tyre pressure for their specific setup, improving comfort, performance, and safety.
The calculator uses a simplified version of Continental's formula:
Where:
Explanation: The formula balances load support with tyre width and adjusts for different riding surfaces.
Details: Correct tyre pressure affects rolling resistance, puncture protection, comfort, and handling. Continental recommends specific pressures for optimal performance.
Tips: Enter your tyre width in mm, total system weight (rider + bike + cargo), and select your typical riding surface.
Q1: Why does tyre width affect pressure?
A: Wider tyres distribute load over a larger contact patch and require lower pressures than narrow tyres.
Q2: What's included in the total load?
A: Include everything the bike carries - rider weight, bike weight, and any cargo or luggage.
Q3: When should I use a higher surface factor?
A: Use higher factors (1.2-1.5) for rough terrain to prevent pinch flats and improve comfort.
Q4: Is this pressure suitable for tubeless setups?
A: Tubeless tyres can typically run 10-15% lower pressure than indicated here.
Q5: How does temperature affect pressure?
A: Tyre pressure changes about 1% per 5°F (3°C) of temperature change - check pressures regularly.