| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 76 |
| Rear reflector missing (4.8.2 (a) (ii)) | 66 |
| Registration plate issues | 43 |
| Registration plate lamp issues | 33 |
| Horn not working (7.7 (a)) | 24 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 19 |
| Rear reflector missing |4.8.2 |a| |ii|| | 17 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 11 |
| Stop lamp remains on when the brakes are released | 7 |
| Rear Footrest missing (6.2.12 (a)) | 6 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 5 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 5 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 5 |
| Offside Rear Footrest missing (6.2.12 (a)) | 5 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 3 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 3 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Horn not working (7.7 (a)) | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort 40KgF fluctuation (1.2.1 (e)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Offside Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Stop lamp not working rear brake (4.3.1 (a) (ii)) | 2 |