| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Registration plate issues | 6 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| 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 headbearing has excessive free play |2.2.2| | 2 |
| Rear Wheel corroded significantly reducing the original strength |4.2.1a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Brake component is fractured |3.1.5| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Rear Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Rear Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake lever is inoperative |3.1.3c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Rear Lower Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake pipe excessively damaged |3.2.B2a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake linkage excessively corroded |3.2.A1c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Nearside Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Lower Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Lower Rear mono-shock insecure |2.4.B.4| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Handlebar handgrip not secure to handlebars. n/s |2.1.1c| | 1 |
| Brake component leaking fluid n/s |3.2.B4| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |