| Most common failures | No# failures |
|---|
| Registration plate issues | 38 |
| Rear reflector missing (4.8.2 (a) (ii)) | 38 |
| Horn not working (7.7 (a)) | 24 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 12 |
| Headlamp aim out of alignment | 9 |
| Horn not working (7.7 (a) (ii)) | 8 |
| Registration plate lamp issues | 8 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 5 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Rear Position lamp not working (4.2.1 (a)) | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 2 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Front Brake hose leaking (1.1.12 (c)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp not working footbrake (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working handbrake (4.3.1 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Footrest insecure (6.2.12 (a)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Rear Drive chain sprocket so worn it is likely to fail rear sprocket bent (6.1.7 (c) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Lower Forks insecure front axle pinch bolts loose (2.2.2 (d) (i)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Central Rear Upper Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Front Shock absorber has a serious fluid leak Both fork seals (5.3.2 (b)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Position lamp not working bulb present (4.2.1 (a)) | 1 |
| Stop lamp not working Front and rear brake not working (4.3.1 (a) (ii)) | 1 |
| Central Front Upper Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock Fouling on horn on full lock. (2.1.4 (b)) | 1 |
| Offside Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak front fork leaking oil (5.3.2 (b)) | 1 |
| Rear Stop lamp not working from rear brake application (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp not working from front brake application (4.3.1 (a) (ii)) | 1 |
| Central Front Upper Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Central Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn swingarm (5.3.4 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak front fork leaking oil (5.3.2 (b)) | 1 |