| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Registration plate issues | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Registration plate lamp issues | 4 |
| Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Steering operation impeded by a leg shield (2.1.4 (e)) | 1 |
| Stop lamp not working Repaired (4.3.1 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Central Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Offside Front Headlamp aim projected beam image obviously incorrect dip beam no pattern (4.1.2 (c)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |