| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Rear Position lamp not working (4.2.1 (a)) | 6 |
| Registration plate issues | 6 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Registration plate lamp issues | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 1 |
| Front Steering linkage ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Rear Brake hose which buldges (3.2.B4) | 1 |
| Front Brake master cylinder leaking hydraulic fluid (3.2.B1e) | 1 |
| Front Roller brake test indicates a sticking brake (3.3.A1a) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. (3.3.A2b) | 1 |
| Horn sound not in accordance with requirements quiet (7.7 (c)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Offside Front Upper Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Offside Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake lever pivot excessively tight (1.1.1 (a)) | 1 |
| Rear Stop lamp not working not working when rear brake is applied (4.3.1 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake hose bulging under pressure (1.1.12 (d)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working When using front brake control. (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake component insecure nearside front pad material breaking up and detached from back plate (1.1.21 (c)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Brake performance not tested rear brake stuck on and rear flex bulging under pressure (1.2.1 (g)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Position lamp not working side car (4.2.1 (a)) | 1 |
| Nearside Rear Position lamp not working side car (4.2.1 (a)) | 1 |
| Front Headlamp incorrect colour (4.1.4 (a)) | 1 |
| Stop lamp not working foot pedal switch (4.3.1 (a) (ii)) | 1 |
| Position lamp switch does not illuminate all position lamps with a single operation Front position lamp permanently on (4.2.2 (a)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure rear hub arm (6.1.1 (b) (i)) | 1 |
| Offside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Suspension arm ball joint likely to become detached (5.3.4 (a) (ii)) | 1 |
| Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Offside Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Wheel spoke missing (5.2.2 (d)) | 1 |
| Front Suspension component ball joint likely to become detached (5.3.4 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls rear brake (4.3.2 (a) (iii)) | 1 |