| Most common failures | No# failures |
|---|
| Registration plate issues | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Headlamp aim out of alignment | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Horn missing |1.7.1| | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Roller brake test indicates a binding brake Front |3.3.A1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking frame cradle loose |6.1.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Brake lever insecure FITTED LOCK NUT (1.1.2 (e) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect kick up/off to right too far lhd= (4.1.2 (c)) | 1 |
| Front Horn missing |1.7.1| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |