| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Headlamp aim out of alignment | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Registration plate issues | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Stop lamp flickers when tapped lightly by hand |1.3.1d| | 1 |
| Offside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Headlamp switch faulty high and low beam work wrong way round |1.2.4| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear suspension bearing has excessive free play swing arm |2.4.A2a|i|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Footrest insecure No Split Pin |6.2.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Horn control defective |1.7.2a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |