| Most common failures | No# failures |
|---|
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre An item not tested |Manual| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Inner Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Headlamp aim out of alignment | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |