| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 33 |
| Registration plate issues | 30 |
| Horn not working (7.7 (a) (ii)) | 17 |
| Horn not working (7.7 (a)) | 9 |
| Headlamp aim out of alignment | 7 |
| Stop lamp remains on when the brakes are released | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 6 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Front Horn not working (7.7 (a) (ii)) | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Registration plate lamp issues | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Front Horn not working (7.7 (a)) | 2 |
| Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Central Front Upper Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake component insecure mounting bracket fracture likely to fail imminently (1.1.21 (c)) | 1 |
| Rear Suspension arm pin or bush excessively worn swinging arm bearings (5.3.4 (a) (i)) | 1 |
| Stop lamp not working both (4.3.1 (a) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Suspension arm pin or bush excessively worn swing arm mounting worn (5.3.4 (a) (i)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Footrest insecure both (6.2.12 (a)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Horn not working horn missing (7.7 (a) (ii)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Stop lamp not working both handle bars and foot pedal operation (4.3.1 (a) (ii)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Suspension arm pin or bush excessively worn Swinging arm bearing has excessive free play (5.3.4 (a) (i)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Horn not working Missing. (7.7 (a) (ii)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Suspension component ball joint excessively worn swingarm bushes (5.3.4 (a) (i)) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam flickering (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Wheel spoke excessively loose REAR X 2 |5.2.2 |d|| | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn LOWER SHOCK BUSH (5.3.4 (a) (i)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm bushes |5.3.4 |a| |i|| | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Headlamp light intensity severely reduced DIP AND MAIN WIRING INCORRECTLY
PROBABLY NEG/EARTH & DIP FEED CROSSED (4.1.4 (a)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |