| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Wheel spoke excessively loose |4.2.1b| | 1 |
| Registration plate issues | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Brake component insecure Locking device on rear brake arm missing (1.1.21 (c)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Gradient brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.D1b| | 1 |