| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls FRONT BRAKE LIGHT SWITCH DEFECTIVE (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Registration plate issues | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork oilseal leaking (5.3.2 (b)) | 1 |
| Rear Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Upper Exhaust silencer insecure clamp was broken (8.1.1 (b) (i)) | 1 |