| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 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 |
| Horn not working |1.7.3a| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Centre Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front Steering linkage has excessive free play |2.2.2| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake hose excessively deteriorated | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Exhaust mounting missing |7.1.1c| | 1 |
| An item not tested |Manual| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |