| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front suspension assembly component loose |2.3.1| | 2 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Sidecar direction indicator insecure |1.5.3b| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear suspension bearing has excessive free play swinging arm |2.4.A2a|i|| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Registration plate issues | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Fuel pipe leaking |7.2.1a| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Sidecar direction indicator not working |1.5.1c| | 1 |
| Rear wheel rotation likely to be impeded Centre stand bolt missing. |6.2.1b| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Rear spindle clamp bolt missing. |6.2.1h| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Handlebar excessively corroded |2.1.1b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Front Sidecar attachment has excessive play in a pin/bush |5.1.1d| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear shock absorber insecurely mounted side car shock locking nuts incorrect |2.4.A.3b| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Indicator tell tale not operating correctly |1.5.2| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Nearside Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Wheel spoke excessively corroded |4.2.1b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |