| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Front mudguard can easily contact any fixed point of the motor bicycle. touching engine |2.3.7| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Front suspension assembly component excessively misaligned front forks not straight |2.3.1| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Drive chain excessively tight, so that it is likely to fail |6.1.7 |k| |ii|| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Brake excessively binding Front (1.2.1 (f)) | 1 |
| Position lamp not working Front (4.2.1 (a)) | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Stop lamp not working foot (4.3.1 (a) (ii)) | 1 |
| Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Headlamp aim out of alignment | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Registration plate issues | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |