| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 19 |
| Registration plate issues | 11 |
| Headlamp aim out of alignment | 6 |
| Horn not working (7.7 (a)) | 6 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Stop lamp remains on when the brakes are released | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Horn not working (7.7 (a) (ii)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Front Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Horn not working no horn fitted (7.7 (a) (ii)) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Wheel spoke missing (5.2.2 (d)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Steering operation restricted in free movement from lock to lock right hand lock hit starter button on fuel tank (2.1.4 (c)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected Rear brake pedal return spring missing (1.1.2 (b) (ii)) | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Brake master cylinder insecure bolt missing from mounting (1.1.10 (c)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 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 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake component insecure (1.1.21 (c)) | 1 |
| Fuel pipe leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Rear Lower Wheel bearing so rough it is likely to overheat or break up Wheel bearings excessive play worse at right hand side than left (5.1.3 (b) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Central Rear Lower Suspension arm pin or bush excessively worn chalked (5.3.4 (a) (i)) | 1 |
| Rear Position lamp not working Rear brake position light not working (4.2.1 (a)) | 1 |
| Front Stop lamp not working Rear stop light does not operate when applied front brake.
Front brake light switch missing. (4.3.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Wheel spoke excessively loose x 3 spokes (5.2.2 (d)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 1 |