| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 16 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Motorcycle structure excessively corroded |6.1.1a| | 5 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Front Steering headbearing has excessive free play |2.2.2| | 4 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Registration plate issues | 3 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 2 |
| Rear Brake lever mounting insecure |3.1.2a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Lower Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Steering linkage has excessive free play |2.2.2| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Indicator tell tale not functioning |1.5.2| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 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 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Inner All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Offside Front Upper Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Inner Front Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 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 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Front position lamp does 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 |
| Direction indicators flashing less than 60 times a minute all |1.5.1c| | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Centre Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Central Rear Lower Motorcycle structure has excessive corrosion which adversely affects braking or steering (6.1.1 (c) (ii)) | 1 |
| Nearside Rear Lower Brake cable has restricted free movement (1.1.15 (e)) | 1 |
| Central Rear Lower Motorcycle structure is so deformed it is likely to adversely affect braking or steering stand bent (6.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |