| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Rear reflector missing (4.8.2 (a) (ii)) | 19 |
| Front Brake excessively binding (1.2.1 (f)) | 17 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 12 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 12 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 11 |
| Horn not working (7.7 (a)) | 9 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 8 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 5 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 4 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 4 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 4 |
| Nearside Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Offside Rear Footrest missing (6.2.12 (a)) | 3 |
| Registration plate lamp issues | 3 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Central Front Horn not working (7.7 (a)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 2 |
| Brake performance unable to be tested (1.2.1 (g)) | 2 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Stop lamp not working lever (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain worn to excess chain link pin seized (6.1.7 (c) (i)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Nearside Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Brake excessively binding front and rear (1.2.1 (f)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Offside Lower Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Brake excessively binding rear brake pedal stiff at pivot (1.2.1 (f)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm pivot (5.3.4 (a) (i)) | 1 |
| Central Front Upper Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Steering headbearing has excessive wear or free play Excessive free play (2.2.2 (f) (i)) | 1 |
| Handlebar mounting insecure Handlebars slightly loose (move backwards & forwards in clamp) (2.2.1 (a) (i)) | 1 |
| Front Brake performance unable to be tested due to serious fork oil leak onto brake disc (1.2.1 (g)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Stop lamp not working rear brake (4.3.1 (a) (ii)) | 1 |
| Drive chain horseshoe locking device likely to become detached Missing (6.1.7 (j) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Offside Rear Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Nearside Rear Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Rear Brake linkage has restricted free movement (1.1.15 (e)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Offside Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar left handlebar grip loose (2.2.1 (d) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls stop lamp not working by the rear brake switch (4.3.2 (a) (iii)) | 1 |
| Steering headbearing has excessive wear or free play excessive movement adjusted (2.2.2 (f) (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Lower Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Lower Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain so worn 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 |
| Wheel alignment incorrect which adversely affects the steering chain adjustment (2.4 (a)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls back brake lever (4.3.2 (a) (iii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |