| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Registration plate issues | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake pedal 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 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Rear Lower Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride clip on chain link fitted wrong way round |6.2.1h| | 1 |