| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 73 |
| Registration plate issues | 47 |
| Headlamp aim out of alignment | 33 |
| Registration plate lamp issues | 26 |
| Rear reflector missing |4.8.2 |a| |ii|| | 19 |
| Horn not working (7.7 (a)) | 16 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 15 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 12 |
| Horn not working (7.7 (a) (ii)) | 10 |
| 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)) | 10 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 7 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 6 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 6 |
| Horn not working |7.7 |a| |ii|| | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| 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|| | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 4 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 4 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 3 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 3 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Stop lamp not working when front brake is applied (4.3.1 (a) (ii)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Offside Front Position lamp not working (4.2.1 (a)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Nearside Rear Lower Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Central Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |