| Most common failures | No# failures |
|---|
| Registration plate issues | 7 |
| Headlamp aim out of alignment | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake hose excessively kinked |3.2.B3a| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake lever |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on registration lamp |1.1.3a| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned Mandatory direction indicators must have minimum separation distances between the illuminating surfaces of: solo motorcycles - 180mm at the rear (4.4.3 (a)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |