| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Chain guard insecure |6.2.1c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Registration plate issues | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Shock absorber has an excessively worn bush upper and lower rear shock bushes (5.3.2 (c)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Wheel fixing loose (single fixing) frot wheel axle pinch bolt loose (5.2.1 (a) (ii)) | 1 |