| Most common failures | No# failures |
|---|
| Drive chain excessively loose |6.2.1d| | 4 |
| Headlamp aim out of alignment | 4 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Drive chain excessively tight, so that it is likely to fail |6.1.7 |k| |ii|| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases front pipe broken away from head needs new exhaust |6.1.2 |a|| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Central Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Nearside Wheel alignment incorrect which adversely affects the steering no gap |2.5.1| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Offside Wheel alignment incorrect which adversely affects the steering no gap |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Offside Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |