| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Registration plate lamp issues | 6 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Lower Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Central Rear Position lamp not working (4.2.1 (a)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Offside Front Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Offside Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear reflector missing obscured by rear L plate (4.8.2 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied control 2 (1.1.2 (d)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Headlamp insecure FRONT FAIRING INSECURE (4.1.1 (c)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Engine mounting/bracket excessively loose the rear engine mount is loose, the engine / rear wheel wobbles (6.1.8 (a) (ii)) | 1 |
| Headlamp aim unable to be tested inoperative (4.1.2 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| 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)) | 1 |
| All position lamps not working no lights (4.2.1 (a)) | 1 |
| Front Headlamp insecure front panel/headlight loose (4.1.1 (c)) | 1 |
| Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |