| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Throttle operating incorrectly loose housing |6.2.1f| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp aim headlamp deteriorated and function impaired hi and low are wrong way around |1.2.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Registration plate issues | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Horn control defective |1.7.2a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |