| Most common failures | No# failures |
|---|
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Headlamp aim out of alignment | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Sidecar direction indicator flashing more than 120 times a minute |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Sidecar attachment has excessive play in a pin/bush |5.1.1d| | 1 |
| Sidecar suspension has an insecure unit. |5.2.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |