| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 46 |
| Horn not working (7.7 (a)) | 27 |
| Registration plate issues | 26 |
| Headlamp aim out of alignment | 12 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 12 |
| Stop lamp remains on when the brakes are released | 9 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 8 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 7 |
| Rear Position lamp not working (4.2.1 (a)) | 6 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| Registration plate lamp issues | 4 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 3 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Nearside Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake lever pivot excessively worn (1.1.1 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect LED bulb fitted (4.1.2 (c)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Rear Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Steering headbearing excessively stiff or notchy Notchy. (2.2.2 (f) (i)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Rear Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Central Rear Wheel hub excessively worn (5.2.1 (b) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working Pedal and lever (4.3.1 (a) (ii)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure subframe (6.1.1 (b) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Nearside Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Rear Wheel spoke excessively loose multiple (5.2.2 (d)) | 1 |
| Suspension component pin or bush excessively worn swing arm (5.3.4 (a) (i)) | 1 |
| Front Wheel spoke missing (5.2.2 (d)) | 1 |
| Stop lamp not working from front brake (4.3.1 (a) (ii)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |