| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Horn not working |1.7.3a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Fuel system component leaking |7.2.1a| | 2 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear wheel bearings have excessive free play rear wheel bearing gone |2.4.A.2c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Brake locking device missing Split pin on rear brake locking arm MISSING |3.2.A1e| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Upper Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Sidecar suspension has an insecure unit. side car wheel suspension unit |5.2.3a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Seat insecure riders seat |6.2.1a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear Wheel spoke cracked. nipple missing and spoke wired in position |4.2.1b| | 1 |
| Brake hose excessively deteriorated | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Offside Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Registration plate issues | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |