| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front mudguard can easily contact any fixed point of the motor bicycle. |2.3.7| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Rear position lamp missing |1.1.1a| | 1 |
| Nearside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Offside Front Upper Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Brake lever mounting cracked |3.1.2c| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| 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 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Registration plate issues | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |