| Most common failures | No# failures |
|---|
| Registration plate issues | 58 |
| Rear reflector on motorcycle missing |1.4.1| | 52 |
| Headlamp aim out of alignment | 35 |
| Rear reflector missing (4.8.2 (a) (ii)) | 20 |
| Rear reflector missing |4.8.2 |a| |ii|| | 19 |
| Registration plate lamp issues | 18 |
| Horn not working (7.7 (a) (ii)) | 14 |
| Horn not working |1.7.3a| | 10 |
| Horn not working (7.7 (a)) | 10 |
| Horn not working |7.7 |a| |ii|| | 9 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| 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)) | 8 |
| Front Horn not working (7.7 (a) (ii)) | 6 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 4 |
| Nearside Front Brake disc fractured (1.1.14 (a) (ii)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| 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| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 3 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 2 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Horn is not a constant note |1.7.3c| | 2 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |