| Most common failures | No# failures |
|---|
| Registration plate issues | 111 |
| Headlamp aim out of alignment | 82 |
| Rear reflector missing (4.8.2 (a) (ii)) | 75 |
| Rear reflector missing |4.8.2 |a| |ii|| | 46 |
| Registration plate lamp issues | 45 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 39 |
| Rear reflector on motorcycle missing |1.4.1| | 30 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 22 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 12 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 12 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 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|| | 10 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 10 |
| Horn not working (7.7 (a)) | 9 |
| Horn not working (7.7 (a) (ii)) | 8 |
| 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)) | 8 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 7 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Horn not working |7.7 |a| |ii|| | 6 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 5 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 3 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 3 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 3 |
| Offside Rear Footrest missing (6.2.12 (a)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Rear Footrest missing (6.2.12 (a)) | 3 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 2 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| 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| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Central Front Upper Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Rear All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Offside Front Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Central Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |