| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Rear reflector on motorcycle missing |1.4.1| | 18 |
| Registration plate issues | 9 |
| 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| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Horn not working |1.7.3a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Centre Front Upper Front wheel spindle loose |2.3.5a| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Drive belt excessively tight |6.2.1d| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Direction indicators not working Front & rear |1.5.1c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Direction indicators not working Front & rear |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen wrong kick up (4.1.2 (a)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock fouling brake line (2.1.4 (b)) | 1 |
| Handlebar retaining device loose clamps slightly loose (2.2.1 (b) (i)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Drive belt excessively loose (6.1.7 (c) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect beam kick up to offside (4.1.2 (c)) | 1 |