| Most common failures | No# failures |
|---|
| Registration plate issues | 15 |
| Headlamp aim out of alignment | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Horn not working |1.7.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Horn missing |1.7.1| | 1 |
| Offside 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 |
| Nearside Front Horn not working |1.7.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 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 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Upper Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Lower Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |