How to Replace Bike Disc Rotors
Quick Answer
Remove the wheel, unscrew the old rotor, clean the hub, and install the new rotor with the correct torque.
How to troubleshoot How to Replace Bike Disc Rotors
Warped or worn rotors reduce braking performance. This guide covers removing and installing new disc rotors.
Step-by-Step Fix
- Remove the wheel from the bike.
- Unscrew the six bolts holding the rotor to the hub.
- Clean the hub surface and the new rotor with alcohol.
- Install the new rotor and hand-tighten the bolts.
- Torque the bolts in a star pattern to the correct specification.
- Reinstall the wheel and test the brakes.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Rotor rubs | Rotor not centred | Loosen the calliper bolts, centre the calliper, and retighten. |
| Brakes pulse | Rotor warped | Replace the rotor. |
Frequently Asked Questions
How long do disc rotors last?
10000-20000 miles, depending on riding conditions.
Can I upgrade to larger rotors?
Yes, but you may need an adapter for the calliper.