| Most common failures | No# failures |
|---|
| Registration plate issues | 17 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Headlamp aim out of alignment | 6 |
| Horn not working |1.7.3a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Wheel spoke missing |4.2.1b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 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 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Horn missing |1.7.1| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Brake component is excessively corroded |3.1.5| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |