| Most common failures | No# failures |
|---|
| Registration plate issues | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Horn is not a constant note |1.7.3c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear position lamp incorrect colour |1.1.2b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Rear Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |