| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Registration plate issues | 7 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front suspension assembly component excessively misaligned |2.3.1| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Offside Front Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Wheel spoke missing |5.2.2 |d|| | 1 |
| Offside Front Upper Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Offside Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Upper Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Front Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Headlamp aim so that beam "kick up" is not visible on the screen both |1.6.B.1| | 1 |
| Nearside Front Lower Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Centre Rear Upper Front mudguard insecure |2.3.7| | 1 |
| Nearside Front Lower Brake component leaking fluid |3.2.B4| | 1 |
| Centre Front Upper All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Upper All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Indicator switch insecure LH switchgear rotates on handlebar. |1.5.4| | 1 |
| Footrest missing Both rear footrests missing. |6.2.1a| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Fuel system component leaking Fuel leak |7.2.1a| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Central Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Central Front Headlamp insecure (4.1.1 (c)) | 1 |
| Central Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake hose excessively stretched fouling wheel (1.1.12 (b) (ii)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Offside Front Brake lever pivot excessively tight (1.1.1 (a)) | 1 |
| Offside Rear Brake lever excessively worn (1.1.15 (b)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Rear Chain guard insecure (6.1.7 (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Rear wheel rotation likely to be impeded bearing require replaceing |6.2.1b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Rear Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside 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 |
| Headlamp switch insecure |1.2.4| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |