| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Nearside Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Registration plate issues | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear All direction indicators not working both rear (4.4.1 (a) (ii)) | 1 |
| All direction indicators not working both front stay solid orange and not flashing (4.4.1 (a) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Offside Front Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |