| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Locking device|s| 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 |
| Nearside Front Lower Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 1 |
| Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Rear Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 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 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |