| Most common failures | No# failures |
|---|
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| 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|| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Headlamp aim out of alignment | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Registration plate issues | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Outer Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Outer Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Outer Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Headlamp aim beam image kick up to the offside masked |1.6| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Centre Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Horn not working |1.7.3a| | 1 |