| Most common failures | No# failures |
|---|
| Registration plate issues | 9 |
| Headlamp aim out of alignment | 9 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 7 |
| 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| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Stop lamp not working brake control 1 (4.3.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Central Front Position lamp missing fallen out |4.2.1 |a|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |