| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Registration plate issues | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Nearside Drive belt guard insecure |6.2.1c| | 1 |
| Rear Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 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 |
| Direction indicators not working |1.5.1c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Brake performance not tested |3.3| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Nearside Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Front Upper Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Centre Rear Lower Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |