| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 4 |
| Front Stop lamp not working |1.2.1b| | 3 |
| Horn not working |1.6.2a| | 2 |
| Rear Stop lamp not working |1.2.1b| | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Nearside Rear Braking system leaking |3.6.A.1| | 2 |
| Rear brake binding | 1 |
| Nearside Rear Brake clevis joint has restricted free movement |3.5.1k| | 1 |
| Offside Rear Brake clevis joint has restricted free movement |3.5.1k| | 1 |
| Nearside Rear Anti-roll bar insecure |2.4.G.1| | 1 |
| Offside Rear Anti-roll bar insecure |2.4.G.1| | 1 |
| Nearside Rear Brake pivot locking device missing |3.5.1l| | 1 |
| Offside Rear Brake pivot locking device missing Bolt missing |3.5.1l| | 1 |
| Offside Rear Shock absorbers insecurely attached (5.3.2 (a) (i)) | 1 |
| Nearside Rear Shock absorbers damaged to the extent that it does not function adrift (5.3.2 (b)) | 1 |
| Offside Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment foot rest insecure (1.1.15 (f)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Offside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Headlamp aim out of alignment | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Rear fog lamp missing |1.3.2a| | 1 |
| Nearside Rear Lower Suspension component mounting prescribed area is fractured |2.4.A.3| | 1 |
| Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |9.2.1a| | 1 |
| Nearside Obligatory mirror missing |8.1.1| | 1 |
| Offside Obligatory mirror missing |8.1.1| | 1 |
| Position lamp switch missing |1.1.A.1| | 1 |
| Offside Front Direction indicator not working |1.4.A.2c| | 1 |
| Headlamp switch faulty |1.7.1| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Nearside Front position lamp|s| not working forward mudguard |1.1.A.3b| | 1 |
| Offside Front position lamp|s| not working forward mudguard |1.1.A.3b| | 1 |
| Nearside Brake cable has a seized clevis joint pivot |3.5.1c| | 1 |
| Front Fork yoke clamp loose |9.2.1c| | 1 |
| Front Brake lever has inadequate reserve travel |9.3.1f| | 1 |
| Horn sounds harsh or grating |1.6.2e| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |9.2.2a| | 1 |
| Rear Rear reflector not fitted symmetrically |1.4.1| | 1 |
| Offside Front Wheel nut|s| loose |4.2.A.1e| | 1 |
| Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Nearside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Nearside Rear Brake pipe kinked |3.6.B.2b| | 1 |
| Brake pipe inadequately supported |3.6.B.1| | 1 |
| Rear Rear fog lamp missing |1.3.2a| | 1 |
| Rear Brake pedal anti-slip provision missing |3.3.A.1b| | 1 |
| Brake rod insecure |3.5.1d| | 1 |
| Rear Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front brake caliper securing device loose |3.5.1j| | 1 |
| Rear Mechanical brake component has restricted free movement | 1 |
| Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Rear Rear reflector missing |1.5.1a| | 1 |
| Steering wheel locking device insecure handlebars loose |2.1.6| | 1 |
| Rear brake application uneven | 1 |
| Front Suspension has inadequate clearance with the bump stop (2.4.A.1a) | 1 |
| Braking system leaking |3.6.A.1| | 1 |
| Steering headbearing has excessive free play |9.2.4| | 1 |
| Offside Front Footrest insecure |9.6.1| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Offside Front Shock absorbers has a serious fluid leak | 1 |
| Front Suspension component attachment bracket/mounting likely to become detached spindle locking devise missing |5.3.3 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Rear reflector missing |1.5.1a| | 1 |
| Nearside Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Offside Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Offside Rear Shock absorber insecure |2.7.2b| | 1 |
| Nearside Rear Axle swivel joint has excessive play in a swivel pin |2.5.A.3b| | 1 |
| Offside Rear Axle swivel joint has excessive play in a swivel pin |2.5.A.3b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Rear parking brake recording little or no effort | 1 |