| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Registration plate issues | 11 |
| Horn not working |1.7.3a| | 8 |
| Headlamp aim out of alignment | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear position lamp incorrect colour |1.1.2b| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Horn is not continous or uniform |1.7.3c| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Nearside Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Shock absorber has a serious fluid leak Both |5.3.2 |b|| | 1 |
| Throttle operating incorrectly Severely affected lock to lock |6.2.7 |a| |i|| | 1 |
| Rear Position lamp missing (4.2.1 (a)) | 1 |
| Front Wheel bearing has excessive play Excess play and rough in rotation (5.1.3 (a) (i)) | 1 |
| Handlebar cracked |2.1.1b| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Wheel hub damaged to the extent that wheel security is adversely affected |5.2.1 |b| |ii|| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Offside Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front mudguard insecure |2.3.7| | 1 |