| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Registration plate issues | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Front Direction indicator adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear All position lamps do not illuminate immediately when switched on (1.1.3a) | 1 |
| Centre Rear Rear reflector on motorcycle missing (1.4.1) | 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 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Front wheel has a loose wheel bolt(s) (4.2.3a) | 1 |
| Handlebar mounting clamp bolt loose (2.1.1a) | 1 |
| Direction indicators not working (1.5.1c) | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |