| Most common failures | No# failures |
|---|
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Registration plate issues | 5 |
| Headlamp aim out of alignment | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Rear Road spring insecure (5.3.1 (a) (i)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies Both front and rear |1.3.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Chain guard insecure |6.1.7 |i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |