| Most common failures | No# failures |
|---|
| Horn not working |1.7.3a| | 5 |
| Headlamp aim out of alignment | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front Wheel spoke excessively loose |4.2.1b| | 3 |
| Front Direction indicators not working |1.5.1c| | 3 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Registration plate issues | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Inner Rear Lower Drive chain excessively loose |6.2.1d| | 1 |
| Inner Rear Lower Wheel spoke excessively loose |4.2.1b| | 1 |
| Inner Front Lower Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Offside Front Footrest insecure locking pin missing |6.2.1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Front Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Registration plate lamp issues | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock right hand side yoke stop broken |2.1.4 |b|| | 1 |
| Headlamp light intensity severely reduced flashing on dipped beam affected by indicaters |4.1.4 |a|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Inner Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Inner Horn not working |1.7.3a| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |