| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Headlamp aim out of alignment | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Registration plate issues | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 2 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Decelerometer brake test indicates a sticking brake |3.3.E1d| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Drive chain sprocket so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Offside Rear Wheel spoke missing |4.2.1b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Wheel spoke missing |4.2.1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Centre Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Front Upper Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Central Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| All position lamps adversely affected by the operation of another lamp indicators affecting lights |1.1.3b| | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| All position lamps not working lights intermittent when steering turned. (4.2.1 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake disc fractured rear disc cracked. (1.1.14 (a) (ii)) | 1 |
| Nearside Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |