| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Position lamp switch insecure (4.2.2 (b)) | 1 |
| Drive chain excessively tight chain tight affecting rotation of wheel (6.1.7 (k) (i)) | 1 |
| Drive chain sprocket so loose it is likely to fail play in sprocket carrier (6.1.7 (c) (ii)) | 1 |
| Drive chain worn to excess chain worn and noisy on rotation (6.1.7 (c) (i)) | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Brake locking device missing rear brake arm split pin missing |3.2.A1e| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride split link |6.2.1h| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride brake stay bar split pin missing |6.2.1h| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front switch n/w (4.3.2 (a) (iii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Stop lamp likely to become detached (4.3.1 (c) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| 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 Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Registration plate lamp issues | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |