| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 28 |
| Registration plate issues | 23 |
| Horn not working (7.7 (a)) | 13 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 12 |
| Headlamp aim out of alignment | 10 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Horn not working (7.7 (a) (ii)) | 7 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 7 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 4 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Registration plate lamp issues | 2 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Front Shock absorber has a serious fluid leak both front forks weeping fork oil (5.3.2 (b)) | 1 |
| Central Front Upper Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Vehicle identification number not legible (0.2 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Riders seat insecure Remove seat and fit correctly (6.2.5 (a) (ii)) | 1 |
| Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Suspension component pin or bush excessively worn Bottom bracket (5.3.4 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls front brake switch broken (4.3.2 (a) (iii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Front Wheel spoke missing (5.2.2 (d)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |