| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Registration plate issues | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Registration plate lamp issues | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Centre Rear Rear reflector on motorcycle missing (1.4.1) | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 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 |1.3.1a| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp dip switch sticking |1.2.2b|i|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear Brake pedal cannot be released smoothly sticking causing brake to bind |3.1.3d| | 1 |
| Stop lamp remains on when the brake is released front brake lever |1.3.1e| | 1 |
| Nearside Front Direction indicators not working (1.5.1c) | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 1 |