| Most common failures | No# failures |
|---|
| Registration plate issues | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Headlamp aim out of alignment | 10 |
| Registration plate lamp issues | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 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 Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock Front brake is applied on full lock |2.1.4 |b|| | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Rear Rear reflector on sidecar missing |1.4.1| | 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 |