1. What is the Zipp Tyre Pressure Calculator?

Definition: This calculator provides recommended tyre pressures for Zipp wheels with hookless rims based on rider weight and tyre width.

Purpose: It helps cyclists optimize their tyre pressure for performance, comfort, and safety with Zipp's hookless rim technology.

2. How Does the Calculator Work?

The calculator uses Zipp's proprietary formula:

Where:

• \( P \) — Recommended tyre pressure (psi)
• \( W \) — Rider weight (kg)
• \( W_t \) — Tyre width (mm)
• \( C \) — Zipp's constant factor (typically 1.25)

Explanation: The formula balances rider weight against tyre width and applies Zipp's specific coefficient for hookless rims.

3. Importance of Proper Tyre Pressure

Details: Correct pressure ensures optimal rolling resistance, grip, comfort, and prevents damage to hookless rims.

4. Using the Calculator

Tips: Enter your total riding weight (rider + bike + gear) in kg and your tyre width in mm. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is this specific to Zipp hookless rims?
A: Hookless rims have different pressure requirements and limits compared to traditional hooked rims.

Q2: Should I use this for non-Zipp wheels?
A: No, this calculator is specifically calibrated for Zipp's hookless rim technology.

Q3: What's the maximum pressure for Zipp hookless rims?
A: Typically 72.5 psi, regardless of tyre width - never exceed manufacturer recommendations.

Q4: How does tyre width affect pressure?
A: Wider tyres generally require lower pressures for optimal performance.

Q5: Should I adjust for different riding conditions?
A: The calculator provides baseline recommendations - consider slight adjustments for wet conditions or rough surfaces.