| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Front position lamp does not face the front |1.1.1d| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Registration plate issues | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |