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.
Wear
1. Replace any brake disc if worn beyond the service limit or that exceeds the disc run-out limit.
Front Disc Thickness
- Standard: 4.5 mm
- Service Limit: 4.0 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: Do not renew front brake discs individually. Discs must always be renewed in pairs even if one of a pair is serviceable. A dangerous riding condition leading to an accident could result if this warning is ignored.
1. Remove the front wheel (see page 15-10).
2. Support the wheel on blocks as illustrated to avoid damage to the wheel centre.
1. Wheel; 2. Support blocks
3. Remove and discard the bolts.
4. Detach the disc. On ABS models, collect the ABS pulser ring from the left hand disc.
5. Repeat for the other disc.
Installation
1. Locate the first disc to the wheel. On ABS models, refit the ABS pulser ring.
2. Fit new bolts and tighten to 22 Nm.
3. Fit the other disc in the same way.
4. Refit the front wheel (see page 15-11).
5. Check for correct brake operation. Rectify as necessary.
Warning: lt is dangerous to operate the motorcycle with defective brakes; you must have your authorised Triumph dealer take remedial action before you ride the motorcycle again. Failure to take remedial action may result in reduced braking efficiency leading to loss of motorcycle control and an accident.