| Most common failures | No# failures |
|---|
| Registration plate issues | 15 |
| Rear reflector on motorcycle missing |1.4.1| | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Headlamp aim out of alignment | 4 |
| Horn not working |1.7.3a| | 4 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn missing |1.7.1| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Front Horn not working |1.7.3a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Headlamp reflector missing |4.1.1 |b| |ii|| | 1 |
| Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake component is fractured |3.1.5| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering hitting radiator right hand side |2.1.2a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Nearside Drive chain excessively tight |6.2.1d| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Vehicle identification number not legible (0.2 (b)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Wheel spoke missing (5.2.2 (d)) | 1 |
| Front Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central Front Horn not working (7.7 (a) (ii)) | 1 |
| Offside Rear Direction indicator 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 |
| Front Shock absorber has a serious fluid leak fork oil seals (5.3.2 (b)) | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |