| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Registration plate issues | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies Switch faulty |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Registration plate lamp issues | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Chain guard insecure CHAIN GUARD SNAPPED (6.1.7 (i)) | 1 |
| Central Front Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp not working front brake light not working. (4.3.1 (a) (ii)) | 1 |
| Front Brake disc contaminated front brake discs and pads contaminated in fork oil. (1.1.14 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Nearside Front Brake caliper insecure suspect thread stripped (1.1.16 (c) (i)) | 1 |