| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Exhaust is leaking and excessively noisey gasket missing on link pipe |7.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling chain adjustment long way out |2.5.1| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride foot rest split pin missing |6.2.1h| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp not working when rear brake is applied (4.3.1 (a) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Offside Front Wheel fixing missing (multiple fixings) spindle clamp bolt missing (5.2.1 (a) (i)) | 1 |
| Offside Rear Footrest insecure pillion footest (6.2.12 (a)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Handlebar handgrip not secure to handlebars. both
|2.1.1c| | 1 |
| Registration plate issues | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Stop lamp not working Not working via foot brake. (4.3.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect Lens dirty. (4.1.2 (c)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |