| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Front Brake lever insecure |3.1.2a| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Brake lever mounting insecure |3.1.2a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Riders seat insecure |6.2.1a| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Brake lever excessively damaged |3.2.A1c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Steering lock stop maladjusted |2.1.3| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Registration plate issues | 1 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Centre Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Front Upper Horn is not continous or uniform |1.7.3c| | 1 |
| Centre Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Lower Steering lock stop ineffective |2.1.3| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |