| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 101 |
| Registration plate lamp issues | 33 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 32 |
| Parking brake: efficiency below requirements |3.7.B.7| | 31 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 27 |
| Rear parking brake recording little or no effort | 15 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 14 |
| Registration plate issues | 12 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 11 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 11 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Rear reflector missing |1.5.1a| | 7 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 6 |
| Offside Rear Direction indicator insecure |1.4.A.2b| | 6 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 6 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 6 |
| Nearside Rear Direction indicator insecure |1.4.A.2b| | 6 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 6 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 6 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 5 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 5 |
| Nearside Rear Shock absorbers has a serious fluid leak | 5 |
| Headlamp not working on dipped beam |1.7.5a| | 5 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 5 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 5 |
| Parking brake efficiency below requirements |3.7.B.7| | 4 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 4 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 4 |
| Brake performance not tested (1.2.1 (g)) | 4 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 4 |
| Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 4 |
| Rear Parking brake inoperative on one side (1.4.1 (a)) | 3 |
| Rear Service brake excessively binding (1.2.1 (f)) | 3 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 3 |
| Rear Direction indicator incorrect colour (4.4.3 (a)) | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Horn not working |1.7.3a| | 3 |
| Hazard warning lamps inoperative |1.4.B.1b| | 3 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Nearside Front Shock absorbers has a serious fluid leak | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Fuel cap/sealing device missing (6.1.3 (b) (i)) | 3 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 3 |
| Offside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 3 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Parking brake lever inoperative (1.1.6 (d)) | 2 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 2 |
| Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Exhaust system not adequately supported |7.1.1| | 2 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Nearside Front Service brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 2 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Offside Stop lamp not working |1.2.1b| | 2 |
| Headlamp switch faulty |1.7.1| | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Parking brake efficiency below requirements |3.7.E.1| | 2 |
| Nearside Rear Shock absorbers has negligible damping effect (5.3.2 (d)) | 2 |
| Offside Rear Shock absorbers has negligible damping effect (5.3.2 (d)) | 2 |
| Nearside Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| rear brake recording little or no effort |3.7.B.5a| | 2 |
| Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 2 |
| Brakes imbalanced across an axle | 2 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Centre Rear reflector missing |1.5.1a| | 2 |
| Horn not working |1.6.2a| | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear Rear reflector missing |1.5.1a| | 2 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear wheel bearing has excessive play |2.6.2| | 2 |
| Front position lamp|s| not working |1.1.A.3b| | 2 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 2 |
| Hazard warning switch faulty |1.4.B.1d| | 2 |
| Offside Front Direction indicator likely to become detached |4.4.1 |c| |ii|| | 2 |
| Parking brake not fitted on at least one wheel on a 3 wheeled vehicle |3.1.1| | 2 |
| Nearside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |