| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 74 |
| Registration plate issues | 67 |
| Rear reflector missing (4.8.2 (a) (ii)) | 60 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 32 |
| Registration plate lamp issues | 21 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 18 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Headlamp aim not tested (4.1.2 (b)) | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 4 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Stop lamp remains on when the brakes are released | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| 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)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 2 |