| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Registration plate issues | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Stop lamp remains on when the brakes are released | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Fuel pipe leaking (6.1.3 (b) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 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 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |