| Most common failures | No# failures |
|---|
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Registration plate issues | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Headlamp aim out of alignment | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Rear Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Centre Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Nearside Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Brake clevis joint insecure (1.1.15 (c)) | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Centre Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Centre Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no pattern |4.1.2 |a|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |