| Most common failures | No# failures |
|---|
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 31 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 16 |
| Headlamp aim out of alignment | 15 |
| Registration plate lamp issues | 12 |
| Rear reflector missing (4.8.2 (a) (ii)) | 10 |
| Front Brake excessively binding (1.2.1 (f)) | 7 |
| Horn not working (7.7 (a)) | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 5 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Headlamp aim not tested (4.1.2 (b)) | 4 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 4 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Registration plate issues | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Horn not working (7.7 (a)) | 2 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 2 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Front Motorcycle structure joining/attachment plate or fastening insecure mudguard (6.1.1 (b) (i)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Handlebar grip insecure to handlebar throttle housing loose and not secure> fitted incorrectly (2.2.1 (d) (ii)) | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied fouls on throttle cable (1.1.2 (d)) | 1 |
| Front Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Front Suspension component pin or bush excessively worn rubber pivot bush (5.3.4 (a) (i)) | 1 |
| Front Brake master cylinder leaking from level window (1.1.10 (b) (ii)) | 1 |
| Rear Brake master cylinder leaking from level window (1.1.10 (b) (ii)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Rear reflector defective or damaged by more than 50% of the reflecting surface NOT VISABLE FROM THE REAR (4.8.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Nearside Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Rear Brake hose connection leaking Fluid leak from banjo bolt. (1.1.12 (c)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Lower Suspension arm attachment bracket/mounting fractured bolt fractured (5.3.3 (b) (ii)) | 1 |
| Central Front Upper Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Brake cylinder excessively corroded and likely to crack sight glass (1.1.16 (d) (ii)) | 1 |
| Headlamp aim not tested light not working (4.1.2 (b)) | 1 |
| Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear reflector missing covered by l plate (4.8.2 (a) (ii)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Shock absorber has a serious fluid leak both front (5.3.2 (b)) | 1 |
| Central Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering front mudguard (6.1.1 (a) (ii)) | 1 |
| Brake master cylinder defective but brake still operating hole in level indicator (1.1.10 (b) (i)) | 1 |
| Front Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake excessively binding front and rear (1.2.1 (f)) | 1 |
| Front Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp not working right hand brake (4.3.1 (a) (ii)) | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle unit loose ,may come off end of handle bar (6.2.7 (a) (ii)) | 1 |
| Front Headlamp aim not tested headlight loose (4.1.2 (b)) | 1 |
| Front Headlamp not working on dipped beam no dip (4.1.1 (a) (ii)) | 1 |
| Rear Position lamp not working rear light not working (4.2.1 (a)) | 1 |
| Rear Brake lever has insufficient reserve travel adjusted rear brake cable. (1.1.2 (a)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Front Brake component insecure (1.1.21 (c)) | 1 |
| Front Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Headlamp aim unable to be tested dip beam not working (4.1.2 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Nearside Front Stop lamp not working on brake lever (4.3.1 (a) (ii)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Brake fluid reservoir fluid level significantly below minimum level M/CYLINDER SIGHT GLASS FAILURE. (1.1.10 (d) (ii)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Headlamp light intensity severely reduced lens reflector missted (4.1.4 (a)) | 1 |
| Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Stop lamp emits other than a steady red light from front control (4.3.3 (a) (ii)) | 1 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Rear Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Central Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Offside Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Brake caliper insecure front caliper upper bush worn (1.1.16 (c) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Rear Direction indicator not working r/hand rear (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working front brake light not working (4.3.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam dip (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam main (4.1.1 (a) (ii)) | 1 |
| Rear Rear reflector missing rear reflector (4.8.2 (a) (ii)) | 1 |
| Rear Brake grabbing severely rear brake grabbing (1.2.1 (c)) | 1 |
| Headlamp aim not tested no light from bulb on dip or main beam (4.1.2 (b)) | 1 |
| Rear Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |