| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 21 |
| Headlamp aim out of alignment | 20 |
| Rear reflector on motorcycle missing |1.4.1| | 16 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Drive chain excessively loose |6.2.1d| | 13 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 9 |
| Registration plate issues | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Drive chain worn to excess |6.2.1e| | 7 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 7 |
| Horn not working |1.7.3a| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Direction indicators not working |1.5.1c| | 6 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Nearside Front Direction indicator not working |1.5.1c| | 5 |
| Nearside Rear Direction indicator not working |1.5.1c| | 5 |
| Offside Rear Direction indicator not working |1.5.1c| | 5 |
| Fuel cap sealing washer missing |7.2.2c| | 5 |
| Headlamp aim not tested |1.6| | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Nearside Rear Footrest missing |6.2.1a| | 4 |
| Offside Rear Footrest missing |6.2.1a| | 4 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| 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| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 3 |
| Position lamp switch insecure |1.1.4b| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Rear Direction indicator missing |1.5.1a| | 2 |
| Headlamp switch insecure |1.2.4| | 2 |
| Front Wheel spoke missing |4.2.1b| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Brake pedal pivots excessively worn |3.1.3a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Position lamp switch faulty |1.1.4a| | 2 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Brake lever insecure front brake lever insecure |3.1.2a| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust mounting does not fully support the exhaust system gasket missing between front and rear of exhaust |7.1.1.c| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Throttle operating incorrectly stick open |6.2.1f| | 1 |
| Headlamp aim headlamp deteriorated and function impaired very dull |1.2.3a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Centre Front Upper Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Front Hydraulic brake control feels spongy and hits handle bars |3.1.4a| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Nearside Front Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Offside Rear Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Offside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride spl;it link |6.2.1h| | 1 |
| Stop lamp does not illuminate immediately a brake applies front operated |1.3.1a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Handlebar handgrip missing |2.1.1c| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front suspension assembly component excessively bent |2.3.1| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Brake component cracked and seriously reduced in strength caliper hanger |3.2.A1| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride front spindle pinch bolt |6.2.1h| | 1 |
| Rear Wheel damaged significantly reducing the original strength hub |4.2.1a| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Horn emits 2 or more alternating tones |1.7.3b| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Horn not working |1.7.3a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Brake hose damaged | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear Wheel spoke excessively loose all spokes |4.2.1b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Headlamp switch insecure |1.2.4| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Centre Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Centre Front Brake performance not tested |3.3| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Fairings insecure and likely to impede the steering FULE TANK LOSE |2.1.2e| | 1 |
| Rear Rear wheel rotation likely to be impeded REAR WHELL LOSE POSSABLE WHELL BEARNIGS TO |6.2.1b| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Position lamp showing white light to the rear |4.2.3 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Fuel cap missing |7.2.2a| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 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 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Chain guard insecure (6.1.7 (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Brake hose leaking (1.1.12 (c)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |