| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Registration plate issues | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Floor brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Stop lamp not working front brake |4.3.1 |a| |ii|| | 1 |
| Stop lamp not working rear brake |4.3.1 |a| |ii|| | 1 |
| Registration plate lamp issues | 1 |
| Fuel system component leaking excessively or a risk of fire |6.1.3 |b| |ii|| | 1 |
| Front Wheel fixing missing (single fixing) (5.2.1 (a) (ii)) | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Brake hose damaged | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |