| Most common failures | No# failures |
|---|
| Registration plate issues | 64 |
| Headlamp aim out of alignment | 62 |
| Rear reflector on motorcycle missing |1.4.1| | 41 |
| Headlamp aim beam image kick up to the offside |1.6| | 18 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Nearside Rear Direction indicator not working |1.5.1c| | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 4 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Horn not working |1.7.3a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Nearside Footrest insecure |6.2.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 2 |
| Exhaust has part of the system missing |7.1.1a| | 2 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Brake fluid reservoir insecurely mounted |3.2.B1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Registration plate lamp issues | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |