| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Drive chain sprocket carrier worn to excess Insecure to hub assembly / loose on securing mechanism. |6.2.1e| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies hand lever |1.3.1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure both chain adjuster lock nuts loose (6.1.1 (b) (i)) | 1 |
| Rear Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Central Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Footrest insecure both (6.2.12 (a)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Fuel pipe damaged (6.1.3 (c) (ii)) | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear suspension component misaligned brake torque arm fouling brake pull rod rear |2.4.A.1a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |