| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 16 |
| Rear reflector missing (4.8.2 (a) (ii)) | 12 |
| Registration plate issues | 10 |
| Registration plate lamp issues | 10 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Horn not working (7.7 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect no dip beam pattern (4.1.2 (c)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (Fork Seal) (5.3.2 (b)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Rear Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Stop lamp not working inop from front brake lever (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls rear switch (4.3.2 (a) (iii)) | 1 |
| Rear Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected |5.2.1 |c| |ii|| | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Central Front Lower Shock absorber has a serious fluid leak front forks leaking fluid (5.3.2 (b)) | 1 |
| Nearside Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Central Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Position lamp showing red light to the front |4.2.3 |a| |ii|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Rear Drive chain so worn it is likely to fail replaced drive chain (6.1.7 (c) (ii)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Brake performance not tested unable to apply rear brake due to insecure footpeg (1.2.1 (g)) | 1 |
| Central Front Upper Headlamp not working on main beam connection block unplugged - plugged back in to rectify (4.1.1 (a) (ii)) | 1 |
| Central Front Upper Headlamp not working on dipped beam connection block unplugged - plugged back in to rectify (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Position lamp showing red light to the front |4.2.3 |a| |ii|| | 1 |
| Central Front Lower Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Handlebar mounting insecure Movement in mounts (2.2.1 (a) (i)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| 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)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Upper Handlebar restricted in free movement from lock to lock Hand Guards fouling fairing, adjusted to clear. (2.1.4 (c)) | 1 |
| Nearside Front Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |