| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Registration plate issues | 8 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Direction indicator incorrect colour |1.5.1b| | 4 |
| 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| | 4 |
| Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Centre Front Upper Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Parking brake not fitted on at least one wheel on a 3 wheeled vehicle |3.1.1| | 1 |
| Handlebar mounting so insecure that steering is adversely affected (2.2.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Upper Direction indicator not working Replaced Blown bulb |4.4.1 |a| |ii|| | 1 |
| Nearside Horn not working |1.7.3a| | 1 |
| Centre Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive belt guard insecure |6.2.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Rear Direction indicator obviously incorrectly positioned both rear indicators to close together (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| 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 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |