| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Registration plate lamp issues | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Registration plate issues | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Nearside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls switch (4.3.2 (a) (iii)) | 1 |
| Rear Brake pedal is so short that the brake cannot be readily applied sticking (1.1.2 (d)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Stop lamp not working front brake switch not working (4.3.1 (a) (ii)) | 1 |
| Handlebar grip insecure to handlebar both grips loose (2.2.1 (d) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Position lamp adversely affected by the operation of another lamp Rear position light flickering /wiring faulty to lamp. (4.2.3 (b)) | 1 |
| Nearside Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Stop lamp not working brake (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Front Upper Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Rear Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected engine revs increase with lock to lock steering (6.2.7 (a) (ii)) | 1 |
| Riders seat insecure bolts missing at front (6.2.5 (a) (ii)) | 1 |
| Drive chain sprocket so loose it is likely to fail front sprocket retaining bolt missing (6.1.7 (c) (ii)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock steering stop missing (2.1.4 (b)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up front bearings rough and have free play (5.1.3 (b) (ii)) | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up rear wheel bearings rough and have excessive free play (5.1.3 (b) (ii)) | 1 |
| Rear Drive chain horseshoe locking device incorrectly fitted rear chain clip fitted wrong (6.1.7 (j) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 1 |