| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 29 |
| Rear reflector missing (4.8.2 (a) (ii)) | 23 |
| Headlamp aim out of alignment | 21 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 19 |
| Rear Brake excessively binding (1.2.1 (f)) | 12 |
| Front Brake excessively binding (1.2.1 (f)) | 11 |
| Front Position lamp not working (4.2.1 (a)) | 9 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 8 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Rear Position lamp not working (4.2.1 (a)) | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 6 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 5 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 5 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 5 |
| Rear brake disc in such a condition that it is seriously weakened | 5 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Registration plate issues | 4 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| All position lamps not working (4.2.1 (a)) | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 2 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 2 |
| Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 2 |
| Rear Brake hose connection leaking (1.1.12 (c)) | 2 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 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 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Front Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Wheel spindle loose Wheel spacer missing o/s. (5.2.1 (c) (i)) | 1 |
| Front Upper Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Fork yoke in such a condition that steering control is adversely affected Steering lock dragging on headstock when ignition on, possible it could lock while riding. (2.2.2 (d) (ii)) | 1 |
| Rear Drive chain so loose it is likely to fail Drive chain can easily be removed from position on rear sprocket and could jump off while riding. (6.1.7 (c) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn Disc worn dangerously thin. (1.1.14 (a) (i)) | 1 |
| Rear Position lamp light intensity significantly reduced Only three LEDs working in rear position lamp (less than 40%) (4.2.3 (a) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Brake pedal insecure master cylinder bolt snapped (1.1.2 (e) (i)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Central Rear Lower Shock absorber has an excessively worn bush Suspension Bush Worn Out (5.3.2 (c)) | 1 |
| Nearside Rear Lower Drive chain excessively loose Drive Chain Excessively Loose (6.1.7 (c) (i)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Central Front Position lamp not working (4.2.1 (a)) | 1 |
| Front 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 (4.1.2 (c)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak both (5.3.2 (b)) | 1 |
| Rear Shock absorber insecurely attached lower mounting bolt not secure (5.3.2 (a) (i)) | 1 |
| Rear Position lamp not working no plate light (4.2.1 (a)) | 1 |
| Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Position lamp light intensity significantly reduced headlamp wiring and operation incorrect (4.2.3 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Fuel cap ineffective Fuel entering ring around fuel tank, leaking to floor and visibly damaging paint (6.1.3 (b) (i)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling Front end twisted (2.4 (a)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush massive play (5.3.2 (c)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Front Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Footrest missing passenger footrest (6.2.12 (a)) | 1 |
| Rear Footrest insecure (6.2.12 (a)) | 1 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Clutch lever positioned so it cannot be readily operated Insecure and moving around. (6.2.7 (b)) | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Offside Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Front Brake excessively binding unable to check wheel bearings (1.2.1 (f)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Stop lamp not working Front stop switch (4.3.1 (a) (ii)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Chain guard insecure (6.1.7 (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 |
| Rear Lower Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Brake performance not tested Not Safe To Test (1.2.1 (g)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Drive chain sprocket so worn it is likely to fail both sprockets need replacing (6.1.7 (c) (ii)) | 1 |
| Offside Front Stop lamp not working brake lever (4.3.1 (a) (ii)) | 1 |
| Rear Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Clutch lever positioned so it cannot be readily operated Clutch mount damaged, operation impaired. (6.2.7 (b)) | 1 |
| Rear Position lamp light intensity significantly reduced Led type less than 50% working. (4.2.3 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front switch not working (4.3.2 (a) (iii)) | 1 |
| Offside Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Nearside Rear Wheel spindle locking device missing incorrectly positioned (5.2.1 (d)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Nearside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Offside Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Central Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Brake performance not tested (1.2.1 (g)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle housing rotates on handlebars (6.2.7 (a) (ii)) | 1 |
| Stop lamp not working ON FOOT BRAKE (4.3.1 (a) (ii)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Headlamp not working on main beam Switch faulty (4.1.1 (a) (ii)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Throttle operating incorrectly engine picks up on rh lock (6.2.7 (a) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted back to front (6.1.7 (j) (i)) | 1 |
| Rear Brake fluid contaminated front probably the same, but cant see the colour as easily (1.8 (a)) | 1 |
| Stop lamp not working from front brake lever (4.3.1 (a) (ii)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface obscured by l/plate (4.8.1 (a) (ii)) | 1 |
| Rear Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Nearside Front Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Nearside Front Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Position lamp not working lever (4.2.1 (a)) | 1 |