| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 45 |
| Registration plate lamp issues | 29 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 14 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 10 |
| Front Brake excessively binding (1.2.1 (f)) | 7 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 6 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 4 |
| Front Horn not working (7.7 (a)) | 4 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 3 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Registration plate issues | 3 |
| Rear Footrest missing (6.2.12 (a)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Central Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp aim unable to be tested No Dipped Beam (4.1.2 (b)) | 1 |
| Offside Handlebar grip insecure to handlebar throttle grip loose (2.2.1 (d) (ii)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted Missing (6.1.7 (j) (i)) | 1 |
| Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Horn not working no horn (7.7 (a) (ii)) | 1 |
| Drive chain sprocket so loose it is likely to fail Sprocket carrier bearing. (6.1.7 (c) (ii)) | 1 |
| Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Front Brake cylinder operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not working with rear brake (4.3.2 (a) (iii)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Stop lamp not working rear brake (4.3.1 (a) (ii)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Stop lamp not working COMES ON AND GOES OFF WHEN PRESSED HARDER (4.3.1 (a) (ii)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Front Upper Horn not working horn switch inoperative - cleaned with switch cleaner to correct works very well now. (7.7 (a)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Brake pedal pivot excessively tight (1.1.1 (a)) | 1 |
| Brake excessively binding Due to rear brake pedal seizing (1.2.1 (f)) | 1 |
| Offside Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Sticking throttle (6.2.7 (a) (ii)) | 1 |
| Front Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Position lamp showing red light to the front Offside and nearside (4.2.3 (a) (ii)) | 1 |
| Central Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Rear Motorcycle structure joining/attachment plate or fastening insecure N/s rear subframe bolt missing. (6.1.1 (b) (i)) | 1 |
| Front Brake excessively binding Unable to check wheel bearing (1.2.1 (f)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Stop lamp does not illuminate by the operation of both brake controls front brake light switch missing (4.3.2 (a) (iii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Exhaust has a major leak of exhaust gases front pipe exhaust clamp missing (6.1.2 (a)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Rear Drive chain worn to excess seized links (6.1.7 (c) (i)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Throttle operating incorrectly not returning on r/h lock (6.2.7 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak Fork seal leaking (5.3.2 (b)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Rear Position lamp not working (4.2.1 (a)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced rear subframe fixing bolt missing (6.1.1 (b) (ii)) | 1 |
| Nearside Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Central Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |