| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Inner Rear Lower Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Offside Rear Lower Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Inner Rear Lower Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Lower Rear suspension bush has excessive free play linkage |2.4.A2a|i|| | 1 |
| Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Registration plate issues | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Inner Rear Lower Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear 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| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |