The following steps are recommended to ensure the best possible results after fitting a hat type disc rotor:
1. Remove wheel.
2. Remove brake pads and push caliper piston back. Start by first loosening the bleeder so as not to push contaminated fluid into the system. Check caliper condition e.g. slides are not stiff or worn.
3. Remove caliper from its supports without disconnecting brake line, making sure to secure it without letting it hang.
4. Remove old brake rotor.