| Most common failures | No# failures |
|---|
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Headlamp aim out of alignment | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Direction indicators flashing less than 60 times a minute all, when lights are on & engine running |1.5.1c| | 1 |
| Offside Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Front wheel spindle locking nut loose |6.2.1h| | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (c) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Centre Front Lower Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |