| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 20 |
| Registration plate issues | 9 |
| Rear reflector missing |4.8.2 |a| |ii|| | 9 |
| Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Registration plate lamp issues | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Exhaust has a major leak of exhaust gases manifold joint (6.1.2 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Front suspension assembly component loose front fork brace loose. |2.3.1| | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Wheel bearing play so excessive that directional control is impaired rear (5.1.3 (a) (ii)) | 1 |
| Brake grabbing severely rear (1.2.1 (c)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake rod insecure rod bent |1.1.15 |c|| | 1 |
| Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front wheel spindle loose Re-tightened to correct torque setting. |2.3.3a| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |