| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 94 |
| Registration plate issues | 30 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 27 |
| Headlamp aim beam image kick up to the offside |1.6| | 20 |
| Drive chain excessively loose |6.2.1d| | 12 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Rear Position lamp not working (4.2.1 (a)) | 6 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Registration plate lamp issues | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Wheel spoke excessively loose |4.2.1b| | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear All position lamps not working (4.2.1 (a)) | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |