| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 18 |
| Registration plate issues | 17 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Horn missing |1.7.1| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Headlamp aim out of alignment | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear position lamp incorrect colour white light to rear |1.1.2b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Registration plate lamp issues | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Suspension arm pin or bush excessively worn Shock absorber |5.3.4 |a| |i|| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear wheel rotation likely to be impeded Mudguard |6.2.1b| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Sprocket |6.2.1h| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Fuel system component leaking carburator |7.2.1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride split link damaged |6.2.1h| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Wheel has an excessively eccentric bead rim. both |4.2.2| | 1 |
| Front position lamp does not illuminate immediately when switched on |Dipped Beam| |1.1.3a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp aim not tested motorcycle will not start (4.1.2 (b)) | 1 |
| Brake performance not tested motorcycle will not start (1.2.1 (g)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |