| Most common failures | No# failures |
|---|
| Registration plate issues | 86 |
| Rear reflector on motorcycle missing |1.4.1| | 57 |
| Rear reflector missing (4.8.2 (a) (ii)) | 38 |
| Headlamp aim out of alignment | 30 |
| Registration plate lamp issues | 22 |
| Rear reflector missing |4.8.2 |a| |ii|| | 11 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 11 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 10 |
| Horn not working |1.7.3a| | 10 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 9 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Offside Rear Footrest missing |6.2.1a| | 6 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 5 |
| Nearside Rear Footrest missing |6.2.1a| | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Rear Footrest missing |6.2.1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| 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| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Front Horn not working (7.7 (a)) | 3 |
| Headlamp switch faulty |1.2.4| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Nearside Rear Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |