| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 40 |
| Front Brake excessively binding (1.2.1 (f)) | 14 |
| Rear Brake excessively binding (1.2.1 (f)) | 8 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 7 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 5 |
| Registration plate issues | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Position lamp not working (4.2.1 (a)) | 2 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Wheel fixing loose (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Rear Lower Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Rear Direction indicator incorrect colour both (4.4.3 (a)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| 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 |
| Front Steering linkage ball joint dust cover insecure so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Fork yoke insecure Excessive play in top yoke (2.2.2 (d) (i)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Front Position lamp not working pilot bulb out (4.2.1 (a)) | 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 disc significantly and obviously worn rear disc below 4.5 mm (1.1.14 (a) (i)) | 1 |
| Offside Front Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake fluid contaminated Front + Rear (1.8 (a)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear Shock absorber has a serious fluid leak heavy oil leak from damper rod and unit is slow to react compared to front (5.3.2 (b)) | 1 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Lower Suspension component ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticks on (6.2.7 (a) (ii)) | 1 |
| Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Rear Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Rear Brake hose leaking (1.1.12 (c)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Central Rear Brake pipe leaking (1.1.11 (b)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Handlebar restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |