| Most common failures | No# failures |
|---|
| Registration plate issues | 9 |
| Headlamp aim out of alignment | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear reflector on motorcycle missing Rear Reflector fitted at Test Station. |1.4.1| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear reflector on sidecar deteriorated and function impaired wrong colour |1.4.2a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Brake fluid contaminated (1.8 (a)) | 1 |
| Position lamp not working not coming on when switched on (4.2.1 (a)) | 1 |
| Central Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Handlebar insecure (2.2.1 (d) (i)) | 1 |
| Front Handlebar retaining device loose Handle bars loose (2.2.1 (b) (i)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |