| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 125 |
| Rear reflector missing (4.8.2 (a) (ii)) | 124 |
| Registration plate issues | 55 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 29 |
| Horn not working (7.7 (a)) | 15 |
| Registration plate lamp issues | 13 |
| 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)) | 9 |
| Stop lamp remains on when the brakes are released | 5 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 5 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 5 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 5 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Horn not working (7.7 (a) (ii)) | 3 |
| All direction indicators not working (4.4.1 (a) (ii)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 3 |
| Rear Footrest missing (6.2.12 (a)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Brake disc contaminated (1.1.14 (b)) | 2 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Front Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Horn not working (7.7 (a)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |