| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Brake hose damaged | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Centre Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Registration plate issues | 1 |
| Headlamp main beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Upper Steering linkage has excessive free play |2.2.2| | 1 |
| Nearside Front position lamp missing |1.1.1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Built up wheel has a loose bolt/s |4.2.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Upper Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |