| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 2 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Chain guard insecure |6.2.1c| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Direction indicator not working all four |1.5.1c| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Headlamp aim out of alignment | 1 |