| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 141 |
| Registration plate lamp issues | 92 |
| Stop lamp not working (4.3.1 (a) (ii)) | 32 |
| Stop lamp remains on when the brakes are released | 30 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 30 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 24 |
| Registration plate issues | 21 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 21 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 19 |
| Rear Position lamp not working (4.2.1 (a)) | 19 |
| Horn not working (7.7 (a)) | 13 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 13 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Stop lamp not working |4.3.1 |a| |ii|| | 11 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 9 |
| Front Position lamp not working (4.2.1 (a)) | 9 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 9 |
| Front Brake excessively binding (1.2.1 (f)) | 8 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 8 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Offside Front Position lamp not working (4.2.1 (a)) | 8 |
| Riders seat insecure (6.2.5 (a) (ii)) | 7 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 7 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 6 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Rear Position lamp not working |4.2.1 |a|| | 5 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Headlamp aim not tested (4.1.2 (b)) | 5 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 5 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 5 |
| Stop lamp does not illuminate immediately a brake applies both controls |1.3.1a| | 4 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Offside Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Rear brake disc in such a condition that it is seriously weakened | 4 |
| Headlamp aim not tested |4.1.2 |b|| | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Offside Front Position lamp not working |4.2.1 |a|| | 3 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 3 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Nearside Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 3 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 3 |
| Front Headlamp aim not tested (4.1.2 (b)) | 3 |