| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Direction indicators not working |1.5.1c| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Registration plate issues | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Handlebar deformed |2.1.1b| | 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 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Throttle operating incorrectly throttle sticking when revved engine speed not dropping (6.2.7 (a) (i)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Suspension arm attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Central Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Brake pedal mounting insecure |3.1.2a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Fuel system component leaking Carb (6.1.3 (b) (i)) | 1 |
| Rear Wheel spoke excessively bent Various spokes (5.2.2 (d)) | 1 |
| Rear Wheel spoke excessively corroded (5.2.2 (d)) | 1 |
| Front Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Inner Rear Lower Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Inner Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Inner Front Lower Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Upper Rear suspension bearing has excessive free play Shock linkage. |2.4.A2a|i|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Lower Engine mounting/bracket missing (6.1.8 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies switch |1.3.1a| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| An item not tested |Manual| | 1 |
| Front Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Steering lock stop loose |2.1.3| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Upper Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |