| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 47 |
| Rear reflector missing (4.8.2 (a) (ii)) | 26 |
| Registration plate issues | 17 |
| Horn not working (7.7 (a)) | 12 |
| Registration plate lamp issues | 9 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 8 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Front Stop lamp not working control (4.3.1 (a) (ii)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Offside Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Offside Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls switch adjustment (4.3.2 (a) (iii)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Offside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Pillion seat with a defective supporting structure pillion seat subframe support insecure to chassis bolts loose. (6.2.6 (a) (i)) | 1 |
| Rear Wheel more than one fixing loose (5.2.1 (a) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Stop lamp not working front brake light not working (4.3.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling out to the right (2.4 (a)) | 1 |
| Direction indicator obviously incorrectly positioned the rear indicators must be 180mm min apart (4.4.3 (a)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Steering headbearing excessively stiff or notchy notchy (2.2.2 (f) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls Brake light not working (4.3.2 (a) (iii)) | 1 |
| Central Horn sound not in accordance with requirements BNot working (7.7 (c)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Stop lamp emits other than a steady red light stop lamp must not continuously flash when the brake is applied (4.3.3 (a) (ii)) | 1 |
| Nearside Front Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Drive chain excessively loose Chain very loose (6.1.7 (c) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Nearside Rear Wheel spindle locking device missing Split pin fitted to rear spindle castle nut (5.2.1 (d)) | 1 |
| Front Brake fluid contaminated moisture (1.8 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Offside Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Wheel spindle locking device ineffective Rear wheel nut spindle, spit pin broken in half (5.2.1 (d)) | 1 |