| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Registration plate issues | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Stop lamp not working Rear switch (4.3.1 (a) (ii)) | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Brake locking device insecure anti rattle shim incorrectly positioned |3.2.A1e| | 1 |
| Motorcycle structure excessively corroded swing arm |6.1.1a| | 1 |
| Rear suspension bearing has excessive free play swing arm bearings |2.4.A2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Footrest missing Both pillion foot rests missing |6.2.1a| | 1 |
| Offside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies Bulb replaced at station |1.3.1a| | 1 |
| Central Front Lower Steering movement excessively `notchy` with the weight on the lower bearing lower bearings notchy |2.2.1a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Steering lock stop ineffective l/h lock stop not effective is trapping cable! |2.1.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |