| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Steering headbearing has excessive free play |2.2.2| | 10 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 9 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Registration plate issues | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Drive chain excessively tight |6.2.1d| | 5 |
| Headlamp aim out of alignment | 5 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 5 |
| Vehicle identification number not legible |6.3.5a| | 4 |
| Handlebar deformed |2.1.1b| | 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 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Rear Brake disc|s| insecure |3.2.A1g| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 2 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 2 |
| Rear Wheel spoke missing |4.2.1b| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Horn missing |1.7.1| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Brake component insecure (1.1.21 (c)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Steering headbearing has excessive wear or free play Front to back play (2.2.2 (f) (i)) | 1 |
| Brake fluid contaminated (1.8 (a)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Centre Front Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Offside Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Offside Front Horn not working |1.7.3a| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Chain guard fouling another component |6.2.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Nearside Rear 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| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Offside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake fluid reservoir cap missing |3.2.B1c| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Lower Chain guard insecure |6.2.1c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 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 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Upper Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |