| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Registration plate issues | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Decelerometer brake test no brake control achieves an efficiency of 30% |3.3.E1a| | 1 |
| Decelerometer brake test neither brake control achieves an efficiency of 25% |3.3.E1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Direction indicator missing all |1.5.1a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Nearside Front Lower Suspension component ball joint likely to become detached ball joint pin insecure in housing |5.3.4 |a| |ii|| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Rear reflector on motorcycle missing replaced |1.4.1| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear reflector reflecting white to the rear (4.8.2 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Hazard warning switch inoperative missing (4.4.2 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Rear Lower Suspension component has excessive wear or free play Reak shock has play in lower link. (5.3.3 (d)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Rear Wheel fixing missing (single fixing) wheel nut bearing spacer missing also (5.2.1 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central Front Headlamp insecure (4.1.1 (c)) | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |