| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Registration plate issues | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Lower Suspension component pin or bush likely to become detached |5.3.4 |a| |ii|| | 1 |
| Rear Lower Footrest missing |6.2.12 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Lower Steering linkage locking device missing |2.1.3 |d|| | 1 |
| Rear Lower Steering linkage locking device missing |2.1.3 |d|| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Horn not working |1.7.3a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |