| Most common failures | No# failures |
|---|
| Registration plate issues | 7 |
| Headlamp aim out of alignment | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Brake cable insecure | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake reaction bracket excessively worn loose bolt (1.1.15 (b)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear wheel cylinder leaking |3.6.A.1| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Nearside Rear brake drum contaminated by brake fluid leaking out of drum |3.5.1h| | 1 |
| Service brake is causing the vehicle to swerve to the offside |3.7.C.2| | 1 |
| Offside Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements binding |3.7.C.1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Position lamp missing |4.2.1 |a|| | 1 |
| Offside Position lamp missing |4.2.1 |a|| | 1 |
| Rear Hydraulic brake cylinder inadequately mounted and braking performance affected |1.1.16 |c| |ii|| | 1 |
| Nearside Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Offside Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Brake lever has insufficient reserve travel hand brake |1.1.2 |a|| | 1 |
| Offside Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Steering head bearings has excessive wear or free play |2.2.2 |g|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Sub-frame attachment bracket/mounting likely to become detached no locking dive |5.3.3 |a| |ii|| | 1 |
| Suspension arm likely to become detached bolts not tighte |5.3.3 |a| |ii|| | 1 |
| Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |