| Most common failures | No# failures |
|---|
| Registration plate issues | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp aim out of alignment | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| 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 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 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Motorcycle structure adversely modified |6.1.1b| | 1 |
| Horn missing |1.7.1| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Stop lamp remains on when the brakes are released | 1 |