| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 23 |
| Headlamp aim out of alignment | 16 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 12 |
| Front wheel bearings have excessive free play |2.3.5b| | 10 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 8 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Headlamp insecure |1.2.3b| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Horn not working |1.7.3a| | 4 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Brake lever insecure |3.1.2a| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Registration plate issues | 2 |
| Rear Brake lever mounting insecure |3.1.2a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Nearside 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 Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Rear Brake lever insecure |3.1.2a| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake lever has inadequate reserve travel rear |3.1.3b| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Rear wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Front Brake lever mounting cracked |3.1.2c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 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 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Offside Front Motorcycle structure cracked |6.1.1a| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Offside Front Lower Front suspension assembly excessive wear or free play in a front suspension component Bush |2.3.4| | 1 |