| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Front Brake excessively binding (1.2.1 (f)) | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 4 |
| Registration plate lamp issues | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Registration plate issues | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp not working Foot lever (4.3.1 (a) (ii)) | 1 |
| Exhaust silencer insecure clamp loose (8.1.1 (b) (i)) | 1 |
| Clutch lever bent so it cannot be readily operated (6.2.7 (b)) | 1 |
| Front Brake grabbing severely caliper pistons not freeing off because of excessive dirt build up (serviced caliper plus changed worn pads) (1.2.1 (c)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Brake performance not tested (1.2.1 (g)) | 1 |
| Offside Front Upper Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticking on - have adjusted to correct (6.2.7 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Wheel excessively distorted rh &lh side of wheel has damage to the rim (5.2.2 (c) (i)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Wheel excessively damaged (5.2.2 (c) (i)) | 1 |
| Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Front Wheel bearing rough when rotated plus slight play (5.1.3 (b) (i)) | 1 |
| Wheel bearing rough when rotated Front wheel bearings (5.1.3 (b) (i)) | 1 |
| Offside Front Position lamp not working FRONT RHS POSITION LAMP OUT - REPLACED BULB (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp aim projected beam image obviously incorrect wrong bulb type, led bulb (4.1.2 (c)) | 1 |
| Front Brake disc significantly and obviously worn Front pads have worn down to metal damaging the disc (1.1.14 (a) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Wheel bearing rough when rotated with slight play (5.1.3 (b) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |