| Most common failures | No# failures |
|---|
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 19 |
| Headlamp aim out of alignment | 12 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 10 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Front suspension has inadequate damping effect. |2.3.6c| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Registration plate issues | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Horn missing |1.7.1| | 1 |
| Nearside Handlebar handgrip missing |2.1.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Nearside Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Upper Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Front Front mudguard insecure |2.3.7| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Front 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 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Steering damper ineffective |2.1.2d| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Front Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |