| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Headlamp aim out of alignment | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Front Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Horn not working |1.7.3a| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Brake lever pivots excessively worn |3.1.3a| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| 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| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Drive chain fouling another component |6.2.1d| | 3 |
| Offside Front Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Rear Rear mono-shock pivot seized |2.4.B.4| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Registration plate issues | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 2 |
| Offside Motorcycle structure excessively damaged |6.1.1a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Front An item not tested |Manual| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Brake fluid reservoir severely damaged |3.2.B1b| | 1 |
| Nearside Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Centre Exhaust mounting missing |7.1.1c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Stop lamp missing |1.3.3a| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Upper Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Rear Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Rear Rear mono-shock insecure |2.4.B.4| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Lower Motorcycle structure cracked |6.1.1a| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Upper Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Centre Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |