| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 29 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 13 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Headlamp aim out of alignment | 8 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 6 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 5 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 4 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 4 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 3 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Suspension attachment bracket/mounting insecure (5.3.3 (a) (i)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| 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)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls front brake (4.3.2 (a) (iii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Front Footrest insecure pin and bracket bent facing downwards (6.2.12 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Front Brake lever excessively worn (1.1.15 (b)) | 1 |
| Stop lamp not working from front brake (4.3.1 (a) (ii)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Central Rear Suspension component pin or bush excessively worn Main swingarm pivot (5.3.4 (a) (i)) | 1 |
| Rear Wheel excessively damaged (5.2.2 (c) (i)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Stop lamp not working brake light not working from front brake lever (4.3.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn Swinging arm bush (5.3.4 (a) (i)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Stop lamp emits other than a steady red light front brake lever. (4.3.3 (a) (ii)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Rear Suspension arm ball joint excessively worn swing arm (5.3.4 (a) (i)) | 1 |
| Offside Front Footrest insecure Footpeg broken (6.2.12 (a)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Rear Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Offside Front Footrest insecure Broken (6.2.12 (a)) | 1 |
| Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Suspension arm ball joint excessively worn Swing arm (5.3.4 (a) (i)) | 1 |
| Front Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Offside Front Steering operation restricted in free movement from lock to lock ignition switch catching steering lock as bent restricting right hand lock (2.1.4 (c)) | 1 |
| Rear Suspension arm ball joint excessively worn swinging arm bushes worn (5.3.4 (a) (i)) | 1 |
| Offside Front Upper Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Rear Direction indicator missing O/S rear indicator missing (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Rear reflector missing Fitted new reflector (4.8.2 (a) (ii)) | 1 |
| Rear Shock absorber has an excessively worn bush shocker top bush (5.3.2 (c)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm bushes (5.3.4 (a) (i)) | 1 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp emits other than a steady red light Switch not working correctly (4.3.3 (a) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front switch fault (4.3.2 (a) (iii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Rear Suspension arm missing (5.3.3 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working Front brake control (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Nearside Front Footrest missing (6.2.12 (a)) | 1 |
| Front Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Steering headbearing has excessive wear or free play Play (2.2.2 (f) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush top bush (5.3.2 (c)) | 1 |
| Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Front Footrest insecure (6.2.12 (a)) | 1 |
| Brake pedal anti-slip provision loose (1.1.2 (c)) | 1 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Steering linkage component fractured (2.1.3 (c) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Registration plate issues | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Throttle operating incorrectly NOT RETURNING WHEN RELEASE THE GRIP STUCK (6.2.7 (a) (i)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Suspension arm ball joint excessively worn Excessive play in rear swingarm pivot bushes (5.3.4 (a) (i)) | 1 |
| Stop lamp not working when brake lever (handlebar) is applied (4.3.1 (a) (ii)) | 1 |
| Offside Front Footrest missing (6.2.12 (a)) | 1 |
| Front Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not working when applying brake lever (4.3.2 (a) (iii)) | 1 |
| Nearside Front Direction indicator not working Unreliable operation. (4.4.1 (a) (ii)) | 1 |
| Handlebar deformed to the extent that steering is affected handlebars bent (2.2.1 (c) (ii)) | 1 |
| Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Drive chain worn to excess seized links etc (6.1.7 (c) (i)) | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |