| Most common failures | No# failures |
|---|
| Registration plate issues | 10 |
| Registration plate lamp issues | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Headlamp aim out of alignment | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front position lamp does not illuminate immediately when switched on side |1.1.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Direction indicator lens defective such that the emitted light is adversely affected by operation of another lamp |4.4.1 |b| |ii|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls when front brake applied (4.3.2 (a) (iii)) | 1 |