| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 103 |
| Registration plate issues | 101 |
| Rear reflector missing (4.8.2 (a) (ii)) | 51 |
| Registration plate lamp issues | 35 |
| Stop lamp remains on when the brakes are released | 27 |
| Rear reflector missing |4.8.2 |a| |ii|| | 20 |
| 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)) | 14 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 10 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 7 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 6 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| 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 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 5 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 5 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 3 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Rear Position lamp not working (4.2.1 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Drive belt worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |