| Most common failures | No# failures |
|---|
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Horn not working |1.7.3a| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Centre Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp aim out of alignment | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Front suspension assembly component missing |2.3.1| | 1 |
| Rear Front suspension assembly component missing |2.3.1| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Chain guard insecure |6.1.7 |i|| | 1 |