| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 16 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 11 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Registration plate issues | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 4 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Horn is not continous or uniform |1.7.3c| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| An item not tested |Manual| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Centre Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Brake pipe excessively corroded | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Upper Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Upper Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Centre Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Nearside Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Stop lamp not working from front brake (4.3.1 (a) (ii)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Central Front Lower Steering operation restricted in free movement from lock to lock Excessively stuff steering and binding on left & right hand lock. Suspect steering stem is bent possibly due to frontal impact. (2.1.4 (c)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 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 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 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 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |