| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 73 |
| Headlamp aim out of alignment | 45 |
| Registration plate issues | 29 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 16 |
| Registration plate lamp issues | 12 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| 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)) | 5 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 5 |
| Horn not working (7.7 (a) (ii)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Stop lamp not working on front brake lever (4.3.1 (a) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Stop lamp adversely affected by the operation of another lamp indicators (4.3.3 (b)) | 1 |
| Direction indicator obviously incorrectly positioned less than 180mm apart (4.4.3 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear reflector missing Added after test. (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Headlamp incorrect colour (4.1.4 (a)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp indicators affecting tail lamp (4.2.3 (b)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Central Rear Upper Rear reflector missing Rear reflector missing - replaced as needed (4.8.2 (a) (ii)) | 1 |
| Suspension arm modified so the suspension is inoperative BOBBIN FOULING EXHAUST (5.3.3 (c) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Central Rear Upper Rear reflector missing rear reflector missing - added as required (4.8.2 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Front Stop lamp not working switch faulty (4.3.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play sprocket carrier (5.1.3 (a) (i)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Horn not working alternative horn fitted for test (7.7 (a)) | 1 |
| Offside Front Horn not working (7.7 (a)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |