| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Horn not working |1.7.3a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| 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| | 2 |
| Fuel hose leaking |7.2.1a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Horn sounds harsh or grating |1.7.3c| | 1 |
| Front Indicator tell tale not operating correctly |1.5.2| | 1 |
| Rear Indicator tell tale not operating correctly |1.5.2| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 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 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 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 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Upper Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Lower Front suspension assembly component excessively bent |2.3.1| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Registration plate issues | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |