| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Registration plate issues | 6 |
| Horn not working |1.7.3a| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Chain guard insecure rear screw loose |6.2.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride bolt loose in chain guard |6.2.1h| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Offside Rear Brake locking device missing |3.2.A1e| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake pedal has insufficient reserve travel hits exhaust (1.1.2 (a)) | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Wheel more than one fixing loose |5.2.1 |a| |ii|| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride steady bar on rear brake caliper split pin missing |6.2.1h| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |