| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Rear Brake rod insecure Rear brake plate anchor arm securing bolt/nut split pin missing (1.1.15 (c)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Suspension arm corroded and seriously weakened |5.3.3 |b| |i|| | 1 |
| Rear Suspension arm missing |5.3.3 |a| |ii|| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 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 wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Chain guard insecure |6.2.1c| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |