| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Registration plate issues | 2 |
| Rear parking brake recording little or no effort | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. (2.1.1c) | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Parking brake not fitted on at least one wheel on a 3 wheeled vehicle |3.1.1| | 1 |
| Centre Front position lamp|s| missing |1.1.A.3a| | 1 |
| Nearside Front Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Front Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Horn not working |1.6.2a| | 1 |
| Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 1 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Mechanical brake component securing device loose |3.5.1i| | 1 |