| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Rear Brake locking device insecure |3.2.A1e| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Brake drum|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Offside Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake switch |1.3.1a| | 1 |
| Direction indicator affected by the operation of another lamp Offside light working with nearside |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Headlamp insecure |1.2.3b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Fork yoke deformed |2.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Registration plate issues | 1 |
| Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |