| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Registration plate issues | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Inner Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |