| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Headlamp aim out of alignment | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Registration plate issues | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Lower Suspension arm attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Horn is not a constant note |1.7.3c| | 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 |
| Footrest insecure |6.2.1a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Brake pedal has inadequate reserve travel no reserve adjustment arm over centre |3.1.3b| | 1 |
| Centre Rear Rear reflector on sidecar missing |1.4.1| | 1 |
| Stop lamp remains on when the brakes are released | 1 |