| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 6 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Registration plate issues | 3 |
| Offside Footrest insecure stiff (6.2.12 (a)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Registration plate lamp issues | 2 |
| Brake indicates excessive fluctuation of brake effort front disc (1.2.1 (e)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Brake pedal pivot has excessive free play (1.1.1 (b)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Stop lamp not working Possibly switch faulty. (4.3.1 (a) (ii)) | 1 |
| Rear Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Chain guard insecure (6.1.7 (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Footrest missing both footrests missing (6.2.12 (a)) | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Wheel fixing loose (single fixing) chain adjuster plate right side (5.2.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Position lamp switch insecure |4.2.2 |b|| | 1 |
| Central Rear Rear reflector missing Covered over (4.8.2 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain excessively tight Tight spot (6.1.7 (k) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Offside Front Upper Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Brake disc contaminated (1.1.14 (b)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Footrest missing n/s and o/s (6.2.12 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |