| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Registration plate issues | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| 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| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear reflector on motorcycle missing (1.4.1) | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock (2.1.4) | 1 |
| Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm pivot bushes worn (5.3.4 (a) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Front Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Handlebar handgrip missing |2.1.1c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering lock stop ineffective right side hitting tank |2.1.3| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level Rear brake fluid very low (1.1.10 (d) (ii)) | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear position lamp incorrect colour Showing White light to rear |1.1.2b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Upper Indicator tell tale not functioning |1.5.2| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Lower Horn not working |1.7.3a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Centre Exhaust mounting missing |7.1.1c| | 1 |
| Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Stop lamp flickers when tapped lightly by hand |1.3.1d| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen dips to the right |4.1.2 |a|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Upper Suspension component pin or bush excessively worn shock absorber bearing |5.3.4 |a| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |