| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 35 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 10 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 7 |
| Registration plate lamp issues | 6 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 6 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 6 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Registration plate issues | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front Brake fluid contaminated (1.8 (a)) | 2 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Headlamp not working on dipped beam new bulb fitted and ok (4.1.1 (a) (ii)) | 1 |
| Steering operation restricted in free movement from lock to lock hand guards were fouling on screen. (2.1.4 (c)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls sticking (4.3.2 (a) (iii)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen bulb incorectly fitted (4.1.2 (a)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Lower Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Front Brake master cylinder leaking fluid coming from bottom of reservoir joint (1.1.10 (b) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Front Brake fluid contaminated watery and has sediment at bottom of reservoir - potentially dangerous as could stop brake working (1.8 (a)) | 1 |
| Rear Stop lamp not working Not working when depressing rear brake pedal (4.3.1 (a) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Brake indicates excessive fluctuation of brake effort front (1.2.1 (e)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Rear Upper Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Headlamp aim projected beam image obviously incorrect bulb not seated correctly (4.1.2 (c)) | 1 |
| Wheel fixing loose (single fixing) L/H chain adjuster bolt and locking nut insecure. (5.2.1 (a) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect Removed and refitted bulb correctly. (4.1.2 (c)) | 1 |
| Horn not working (7.7 (a)) | 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 |
| Offside Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Horn not working bad connetion? tapped and started working (7.7 (a)) | 1 |
| Nearside Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |