| Most common failures | No# failures |
|---|
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Headlamp aim out of alignment | 2 |
| Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Registration plate issues | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Locking devices 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 not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam Hi and low beams come on simultaneously. (4.1.3 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Centre Front Headlamp aim not tested |1.6| | 1 |
| Nearside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Rear Lower Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Centre Front Lower Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |