| Most common failures | No# failures |
|---|
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Headlamp aim out of alignment | 5 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Nearside Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Stop lamp does not illuminate immediately a brake applies front lever |1.3.1a| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| An item not tested |Manual| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake rod insecure |1.1.15 |c|| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |