1. What is a Cycling Tyre Pressure Calculator?

Definition: This calculator estimates the optimal tyre pressure based on rider weight and tyre width.

Purpose: It helps cyclists determine the best tyre pressure for comfort, performance, and safety.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Recommended tyre pressure (PSI)
• \( W \) — Rider weight (kg)
• \( W_t \) — Tyre width (mm)

Explanation: The formula accounts for weight distribution and tyre volume to optimize pressure.

3. Importance of Proper Tyre Pressure

Details: Correct pressure affects rolling resistance, grip, puncture protection, and ride comfort.

4. Using the Calculator

Tips: Enter your weight in kg and tyre width in mm (default 25mm). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why does tyre width affect pressure?
A: Wider tyres have more air volume and can run at lower pressures while maintaining performance.

Q2: Should I use the same pressure front and rear?
A: Typically, rear pressure should be 5-10% higher due to weight distribution.

Q3: When should I adjust from the recommended pressure?
A: Adjust for riding conditions - higher for smooth roads, lower for rough terrain.

Q4: Does this work for tubeless tyres?
A: Yes, but tubeless can often run 5-10 PSI lower than clinchers.

Q5: How often should I check my tyre pressure?
A: Before every ride, as tyres naturally lose pressure over time.