| Most common failures | No# failures |
|---|
| Horn not working |1.7.3a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Headlamp aim out of alignment | 3 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Offside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front An item not tested |Manual| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride REAR WHEEL |6.2.1h| | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |