| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Steering headbearing has excessive free play |2.2.2| | 12 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Rear Footrest missing |6.2.1a| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Registration plate issues | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Direction indicators not working |1.5.1c| | 2 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Brake lever insecure |3.1.2a| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Horn is not a constant note |1.7.3c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Centre Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Lower Front position lamp insecure |1.1.1c| | 1 |
| Nearside Front Upper Direction indicators not working |1.5.1c| | 1 |
| Offside Front Upper Direction indicators not working |1.5.1c| | 1 |
| Centre Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Nearside Rear Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Centre Rear Lower Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Nearside Rear Lower Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Centre Front Lower Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Centre Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 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 |
| Headlamp aim not tested |1.6| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Headlamp main beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Nearside Headlamp switch insecure |1.2.4| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| An item not tested |Manual| | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Front Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 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 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Offside Brake lever insecure |3.1.2a| | 1 |
| Rear 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 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Nearside Front Indicator switch insecure |1.5.4| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies Front brake |1.3.1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |