| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Registration plate issues | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Central Rear Upper Suspension arm pin or bush excessively worn pivot arm |5.3.4 |a| |i|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |