| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Horn not working |1.7.3a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Registration plate issues | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Inner Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Inner Rear Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Outer Footrest insecure |6.2.1a| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking REAR SUB FRAME |6.1.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Inner Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low below min |3.2.B1d| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |