| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Brake hose excessively deteriorated | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Horn missing |1.7.1| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Fuel hose leaking at fuel tap |7.2.1a| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front suspension assembly component cracked |2.3.1| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Registration plate issues | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Outer Rear Upper Direction indicators not working |1.5.1c| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Fuel system component insecure Tank has no rear mounting. |7.2.1b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Split pin missing from rear brake torque arm. |6.2.1h| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |