| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Registration plate issues | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a)) | 1 |
| Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Rear Drive chain sprocket so loose it is likely to fail Nut was missing (6.1.7 (c) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Central Rear Lower Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Front Motorcycle structure has a fracture which is likely to adversely affect braking or steering Master cylinder (6.1.1 (a) (ii)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Front Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Suspension component modified so the suspension is inoperative rear suspension seized (5.3.3 (c) (ii)) | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Brake cylinder has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Front All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Suspension arm pin or bush excessively worn Swing arm (5.3.4 (a) (i)) | 1 |
| Rear Drive chain sprocket excessively loose nut loose (6.1.7 (c) (i)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| All direction indicators not working Stay on continuously (4.4.1 (a) (ii)) | 1 |
| Central Rear Suspension arm ball joint excessively worn Excessive play (5.3.4 (a) (i)) | 1 |
| Stop lamp not working front (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly Grip turning. (6.2.7 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Engine revs rise on R/H steering lock. (6.2.7 (a) (ii)) | 1 |
| Headlamp insecure Loose. (4.1.1 (c)) | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp lens defective such that the emitted light is adversely affected (4.3.1 (b) (ii)) | 1 |
| Front All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Central Front Position lamp not working (4.2.1 (a)) | 1 |
| Suspension component pin or bush excessively worn Swing arm bushes (5.3.4 (a) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Fuel system component leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |