| Most common failures | No# failures |
|---|
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 8 |
| Headlamp aim out of alignment | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Registration plate issues | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front suspension assembly component excessively corroded. |2.3.1| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Exhaust has part of the system missing |7.1.1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Rear Upper Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Stop lamp missing |4.3.1 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Horn missing |1.7.1| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Lower Motorcycle structure adversely modified |6.1.1b| | 1 |
| Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 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 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |