| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 100 |
| Registration plate lamp issues | 42 |
| Registration plate issues | 32 |
| Rear reflector missing (4.8.2 (a) (ii)) | 26 |
| Rear reflector missing |4.8.2 |a| |ii|| | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 18 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| 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)) | 7 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Horn not working |7.7 |a| |ii|| | 5 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Horn not working (7.7 (a) (ii)) | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 4 |
| 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|| | 4 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Horn not working |1.7.3a| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Footrest insecure (6.2.12 (a)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Rear Footrest missing |6.2.12 |a|| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Footrest missing both (6.2.12 (a)) | 2 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Horn control not functioning. |1.7.2b| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |