| Most common failures | No# failures |
|---|
| Registration plate issues | 13 |
| Headlamp aim out of alignment | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Registration plate lamp issues | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Centre Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Inner Rear Upper Rear position lamp missing |1.1.1a| | 1 |
| Outer Rear Upper Rear position lamp missing |1.1.1a| | 1 |
| Centre Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Rear position lamp missing |1.1.1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 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 |
| Central Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Wheel spindle loose spacer missing do not ride! (5.2.1 (c) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |