| Most common failures | No# failures |
|---|
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Headlamp aim out of alignment | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Nearside Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Front Brake cable has a significantly damaged outer casing. |3.2.A1b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| 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 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |