| Most common failures | No# failures |
|---|
| Registration plate issues | 6 |
| Fuel system component leaking |7.2.3| | 2 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 2 |
| Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Stop lamp not working with foot pedal |1.2.1b| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Indicator tell tale inoperative |1.4.A.2a| | 1 |
| Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Hazard warning lamps not flashing in phase, with ignition off all |1.4.B.1f| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Fuel system component leaking carburettor leaking when not running |7.2.3| | 1 |
| Front Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Front Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on all |1.4.B.1f| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Headlamp not working on dipped beam both |1.7.5a| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Nearside Front Track rod end loose |2.2.B.1d| | 1 |
| Offside Front Track rod end loose |2.2.B.1d| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Brakes imbalanced across an axle | 1 |
| Front Stop lamp(s) all not working (4.3.1 (a) (iii)) | 1 |
| Rear Stop lamp(s) all not working (4.3.1 (a) (iii)) | 1 |
| Nearside Front Suspension arm ball joint likely to become detached (5.3.4 (a) (ii)) | 1 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Offside Front Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Offside Front Hand operated control valve malfunctioning No reserve travel on front brake lever (1.1.5 (d)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Parking brake lever defective so that it cannot be satisfactorily operated |1.1.6 |d|| | 1 |
| Parking brake lever missing |1.1.6 |d|| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Headlamp not working on dipped beam aim not tested |1.7.5a| | 1 |
| Offside Headlamp not working on dipped beam aim not tested |1.7.5a| | 1 |
| Indicator tell tale inoperative not working corectly |1.4.A.2a| | 1 |
| Nearside Footrest insecure foot well |9.6.1| | 1 |
| Hazard warning switch missing |1.4.B.1d| | 1 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Nearside Lower Front suspension has excessive movement at a suspension ball joint on arm |2.5.A.1c| | 1 |
| Offside Lower Front suspension has excessive movement at a suspension ball joint on arm |2.5.A.1c| | 1 |
| Nearside Rear Radius arm attachment bracket/mounting bolt missing |2.4.G.1| | 1 |
| Offside Rear Radius arm attachment bracket/mounting insecure |2.4.G.1| | 1 |
| Headlamp not working on dipped beam Both headlights (4.1.1 (a) (ii)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Service brake efficiency less than 50% of the required value Handlebar brake 0% brake efficiency, needs 25% (1.2.2 (a) (ii)) | 1 |