| Most common failures | No# failures |
|---|
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Front wheel bearings have excessive free play |2.3.5b| | 8 |
| Headlamp aim out of alignment | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Registration plate issues | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Rear Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Shock absorber has a serious fluid leak both |5.3.2 |b|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Suspension arm pin or bush excessively worn radius arm |5.3.4 |a| |i|| | 1 |
| Nearside Front Steering operation impeded by a fairing insecure |2.1.4 |e|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Roller brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake lever pivots excessively worn |3.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies Rear |1.3.1a| | 1 |
| Rear suspension component loose Linkage nut |2.4.A.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| 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| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |