| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Registration plate lamp issues | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Valve stem seriously damaged Front & rear (5.2.3 (j)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Registration plate issues | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Upper Steering headbearing has excessive wear or free play bearings self center (2.2.2 (f) (i)) | 1 |
| Nearside Lower Footrest insecure footrest fixing missing (6.2.12 (a)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear Direction indicator not working L/H (4.4.1 (a) (ii)) | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |