| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Headlamp aim out of alignment | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Registration plate issues | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Brake performance not tested |3.3| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Brake disc contaminated both (1.1.14 (b)) | 1 |
| Front Shock absorber has a serious fluid leak both (5.3.2 (b)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 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 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen no visible beam image in headlamp collector |4.1.2 |a|| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Offside Front Lower Front suspension assembly component missing |2.3.1| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Registration plate lamp issues | 1 |
| Drive chain worn to excess chain over oiled. |6.2.1e| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies switch needs adjusting. |1.3.1a| | 1 |
| Nearside Headlamp insecure |1.2.3b| | 1 |
| Rear Brake component insecure (1.1.21 (c)) | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Nearside Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Lower Front mudguard insecure |2.3.7| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Rear Upper Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear mono-shock insecure Top bolt moves |2.4.B.4| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Drive chain fouling another component |6.2.1d| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Brake cylinder damaged and braking performance affected |1.1.16 |a| |ii|| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Stop lamp missing |1.3.3a| | 1 |