| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 4 |
| Headlamp aim out of alignment | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Throttle operating incorrectly Not returning. (6.2.7 (a) (i)) | 1 |
| Front Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Brake performance not tested Rear brake not working. (1.2.1 (g)) | 1 |
| Brake pedal insecure Split pin missing. (1.1.2 (e) (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Nearside Rear Footrest insecure split pin missing (6.2.12 (a)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp not working Control (4.3.1 (a) (ii)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Horn sound not in accordance with requirements only motorcycles first used before 1st August 1973 can have a bulb horn (7.7 (c)) | 1 |
| Headlamp not working on dipped beam Headlamp main beam tell tale on permanently not dropping to dipped beam (4.1.1 (a) (ii)) | 1 |