| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Registration plate issues | 4 |
| Horn not working (7.7 (a)) | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear All direction indicators obviously incorrectly positioned Mandatory direction indicators must have minimum separation distances of:
???solo motorcycles over 50cc ??? 300mm at the front and 240mm at the rear
Less than 240mm on rear |4.4.3 |a|| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Clutch lever positioned so it cannot be readily operated Mount insecure |6.2.7 |b|| | 1 |
| Stop lamp not working Front Control (4.3.1 (a) (ii)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Stop lamp not working Rear Foot Control (4.3.1 (a) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Brake performance unable to be tested In-op (1.2.1 (g)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on not working |1.1.3a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort rear brake not working |3.3.A1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Rear Brake lagging in operation |1.2.1 |d|| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Horn not working Horn does not work when the button is pressed. (7.7 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute Due to front flashers not working |1.5.1c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride N/S pillion footrest pin, `e-clip` missing |6.2.1h| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Headlamp aim out of alignment | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Central Front Horn control not functioning. |1.7.2b| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |