| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Headlamp aim out of alignment | 8 |
| Registration plate issues | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 5 |
| Horn not working |1.7.3a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Front Horn not working |1.7.3a| | 4 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Floor brake test indicates a binding brake not returning |3.3.C2c| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Brake lever is positioned so that the brake cannot be readily applied leaver hits other equipment on bars giving restricted moment |3.1.3c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| 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 |
| Riders seat insecure |6.2.1a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Fuel pipe leaking |7.2.1a| | 1 |
| Headlamp aim beam image too far to the left |1.6.4| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Front Horn not working |1.7.3a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.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 |
| Nearside Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Centre Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 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 Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Horn missing |1.7.1| | 1 |
| Position lamp missing (4.2.1 (a)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |