| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Horn not working |1.7.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Front Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Fuel system component leaking |7.2.1a| | 1 |
| Offside Front Lower Brake locking device insecure |3.2.A1e| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Sidecar direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Sidecar front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Upper Sidecar attachment fractured |5.1.1b| | 1 |
| Front Lower Sidecar attachment insecure |5.1.1b| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Sidecar direction indicator not working |1.5.1c| | 1 |
| Rear Sidecar direction indicator not working |1.5.1c| | 1 |
| Front Steering lock stop loose |2.1.3| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Upper Brake hose leaking fluid |3.2.B4| | 1 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Sidecar attachment insecure |5.1.1b| | 1 |
| Sidecar wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |