| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 62 |
| Rear reflector missing (4.8.2 (a) (ii)) | 26 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 19 |
| Registration plate lamp issues | 18 |
| Registration plate issues | 13 |
| Front Position lamp not working (4.2.1 (a)) | 11 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Horn not working (7.7 (a)) | 8 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 7 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Exhaust system insecure (6.1.2 (a)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Nearside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel excessively distorted (L/H Side Bead Rim Buckled) (5.2.2 (c) (i)) | 1 |
| Front Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected (L/H Bead Rim Distorted and Wheel Has Over 2mm Runout) (5.2.2 (c) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Footrest insecure Footrest fractured across half of the mount and likely to fail. (6.2.12 (a)) | 1 |
| Brake pedal has insufficient reserve travel Rear brake pedal has to be pressed to near the maximum travel to begin to apply the rear brake. (1.1.2 (a)) | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Nearside Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Footrest insecure Securing clip missing. (6.2.12 (a)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Rear Direction indicator likely to become detached rear tail pod lose (4.4.1 (c) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Offside Front Upper Brake lever insecure brake lever (front) loose - tightened to secure (1.1.2 (e) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect l.e.d bulb . (4.1.2 (c)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect Aftermarket headlamp, does not have cut off on beam. (4.1.2 (c)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected sticking on lock (6.2.7 (a) (ii)) | 1 |
| Rear Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Front Brake component insecure pad retaining r clip (1.1.21 (c)) | 1 |
| Front Brake cylinder leaking (1.1.16 (b) (i)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Suspension component has excessive wear or free play Rear swing arm, near side bearing (5.3.3 (d)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Nearside Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Upper Clutch lever shortened so it cannot be readily operated Clutch leaver snapped of (6.2.7 (b)) | 1 |
| Front Brake fluid contaminated very dark (1.8 (a)) | 1 |
| Rear Brake fluid contaminated very dark (1.8 (a)) | 1 |
| Handlebar excessively deformed bent (2.2.1 (c) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 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 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Rear Rear reflector missing PRS -Replaced (4.8.2 (a) (ii)) | 1 |
| Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Clutch lever bent so it cannot be readily operated (6.2.7 (b)) | 1 |
| Front Steering headbearing excessively stiff or notchy Notchy (2.2.2 (f) (i)) | 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 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |