| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Horn not working |1.7.3a| | 3 |
| Registration plate issues | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Hazard warning switch missing |1.4.B.1d| | 1 |
| Stop lamp not working from front control |1.2.1b| | 1 |
| Horn not working |1.6.2a| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Front Stop lamp not working brake control |1.2.1b| | 1 |
| Rear Stop lamp not working brake control |1.2.1b| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Nearside Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.B.7| | 1 |
| Offside Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.B.7| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Offside Front Stop lamp switch with a delay in operation not working with front lever ,intermittent. |4.3.2 |a| |ii|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition 120 db |8.1.1 |a|| | 1 |
| Suspension component mounting modified so the suspension is likely to fail other components |5.3.3 |c| |ii|| | 1 |
| Suspension component mounting modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Central Rear Position lamp not working |4.2.1 |a|| | 1 |