Wear
Warning! Before starting work, ensure the motorcycle is stabilised and adequately supported. This will help prevent it from falling and causing injury to the operator or damage to the motorcycle.
1. Replace any brake disc if worn beyond the service limit or exceeds the disc run-out limit.
| Rear Disc Thickness | |
| Standard | 7.5 mm |
| Service limit | 6.5 mm |
| Disc Run-out | |
| Service limit | 0,15 mm |
Measure disc run out using an accurate dial gauge mounted on a surface plate.
1. Disc; 2. Dial gauge
Removal
Warning! Before starting work, ensure the motorcycle is stabilised and adequately supported. This will help prevent it from falling and causing injury to the operator or damage to the motorcycle.
1. Remove the rear wheel as described on page 16.8.
2. Support the wheel on blocks as illustrated to avoid damage to the wheel centre.
3. Remove and discard the disc securing bolts. Detach the disc.
Installation
1. Locate the disc to the wheel.
2. Fit new securing bolts and tighten to 22 Nm.
3. Refit the wheel as described on page 16.9.
4. Check the operation of the rear brake. Rectify as necessary.
Warning! It is dangerous to operate the motorcycle with defective brakes and you must have your authorised Triumph Dealer take remedial action before you attempt to ride the motorcycle again. Failure to take remedial action may reduce braking efficiency leading to loss of motorcycle control and an accident.