| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Registration plate lamp issues | 4 |
| Parking brake lever has no reserve travel |3.1.6b| | 3 |
| Horn not working |1.6.2a| | 2 |
| Rear parking brake recording little or no effort | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Stop lamp not working |1.2.1b| | 2 |
| Nearside Rear Stop lamp not working |1.2.1b| | 2 |
| Registration plate issues | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Offside Rear Brake pipe inadequately clipped |3.6.B.1| | 2 |
| Centre Rear Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Steering system excessively rough |2.2.D.1| | 1 |
| Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Nearside Rear reflector obviously incorrectly positioned |1.5.1a| | 1 |
| Offside Rear reflector obviously incorrectly positioned |1.5.1a| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Centre Front position lamp|s| not working |1.1.A.3b| | 1 |
| Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp|s| not working |4.3.1 |a| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Centre Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Front Front position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Front Front position lamp|s| missing |1.1.A.3a| | 1 |
| Nearside Rear Front position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Rear Front position lamp|s| missing |1.1.A.3a| | 1 |
| Nearside Stop lamp obviously incorrectly positioned |1.2.1a| | 1 |
| Offside Stop lamp obviously incorrectly positioned |1.2.1a| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Front Front shock absorber leaking oil |9.2.7b| | 1 |
| Front Stop lamp not working |1.2.1b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Parking brake lever inappropriately modified |3.1.8| | 1 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Rear brake binding | 1 |
| Parking brake efficiency below requirements |3.7.B.7| | 1 |
| Handlebar mounting clamp bolt loose |9.2.1c| | 1 |
| Suspension arm cracked |2.4.G.1| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Handlebar mounting clamp bolt loose |9.2.1c| | 1 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Nearside Rear Shock absorbers insecurely attached (5.3.2 (a) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front brake disc has restricted free movement |3.5.1j| | 1 |
| Nearside Front brake disc has restricted free movement |3.5.1j| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Parking brake lever missing No parking brake fitted |1.1.6 |d|| | 1 |
| Offside Parking brake efficiency below requirements |3.7.B.7| | 1 |
| Steering wheel retaining device insecure handle bar insecure |2.1.6| | 1 |
| Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Nearside Rear Brake relay lever has restricted free movement (1.1.15 (e)) | 1 |
| Brakes imbalanced across an axle | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Shock absorbers has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Position lamp lens seriously defective smoke coming from loom |4.2.1 |b|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Suspension component insecure and impairing directional stability PROPSHAFT BOLTS LOOSE |5.3.3 |a| |ii|| | 1 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.B.7| | 1 |
| Rear Drive shaft uj which forms part of the suspension has a missing flange bolt |2.4.G.4c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |9.2.2a| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Brake lever locking device insecure |3.5.1l| | 1 |
| Front wheel spindle securing nut|s| loose |9.2.8a| | 1 |
| Nearside Rear Mechanical brake component locking device missing |3.5.1l| | 1 |
| Nearside Front Hazard warning lamps inoperative |1.4.B.1b| | 1 |
| Offside Rear Suspension component insecure and impairing directional stability hub (5.3.3 (a) (ii)) | 1 |
| Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Anti-lock braking system warning lamp does not illuminate |3.4.1b| | 1 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |