| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Registration plate issues | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 3 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Drive chain worn to excess |6.2.1e| | 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 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Brake component is severely distorted |3.1.5| | 1 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Centre Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Brake drum|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Indicator switch inoperative |4.4.2 |a| |ii|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Inner Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Headlamp light intensity severely reduced Dip & Main (4.1.4 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator obscured |1.5.1a| | 1 |
| Offside Front suspension assembly has an insecure fork brace |2.3.4d| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Chain guard insecure |6.2.1c| | 1 |
| Front position lamp does not face the front |1.1.1d| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Rear Brake locking device missing |3.2.A1e| | 1 |