| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Registration plate issues | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |