| Most common failures | No# failures |
|---|
| Horn not loud enough to be heard by another road user |1.7.3a| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Headlamp aim out of alignment | 3 |
| Fuel system component leaking |7.2.1a| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Wheel spoke excessively corroded |4.2.1b| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Registration plate issues | 1 |
| Nearside Rear Wheel spoke missing (5.2.2 (d)) | 1 |