| Most common failures | No# failures |
|---|
| Rear Position lamp not working (4.2.1 (a)) | 7 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Riders seat insecure (6.2.5 (a) (ii)) | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Registration plate lamp issues | 4 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp aim out of alignment | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Stop lamp remains on when the brakes are released | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls front brake switch (4.3.2 (a) (iii)) | 1 |
| Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Rear Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Offside Front Motorcycle structure joining/attachment plate or fastening insecure mudguard (6.1.1 (b) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure motorcycle main stand worn and not returning fully (6.1.1 (b) (i)) | 1 |
| Riders seat insecure seat does not lock (6.2.5 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Stop lamp not working both (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working front lever , switch faulty (4.3.1 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Front Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Registration plate issues | 1 |
| Stop lamp not working from front brake (4.3.1 (a) (ii)) | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Rear Stop lamp not working right hand leaver (4.3.1 (a) (ii)) | 1 |