| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 34 |
| Registration plate issues | 26 |
| Headlamp aim out of alignment | 10 |
| Horn not working (7.7 (a)) | 9 |
| Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Registration plate lamp issues | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear 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 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Headlamp not working on dipped beam head light goes out when turning steering (4.1.1 (a) (ii)) | 1 |
| Front Brake component insecure (1.1.21 (c)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Stop lamp not working from front (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working from rear (4.3.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Position lamp not working Front (4.2.1 (a)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Drive belt so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Wheel spoke missing (5.2.2 (d)) | 1 |
| Rear Wheel spoke excessively loose 2 wheel spokes (5.2.2 (d)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel spoke excessively loose X2 (5.2.2 (d)) | 1 |
| Rear Wheel spoke excessively loose X5 (5.2.2 (d)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Shock absorber has a serious fluid leak lh fork seal (5.3.2 (b)) | 1 |
| Shock absorber has a serious fluid leak rh fork seal (5.3.2 (b)) | 1 |
| Wheel excessively distorted rear wheel rh side (5.2.2 (c) (i)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |