| Most common failures | No# failures |
|---|
| Registration plate issues | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Headlamp aim out of alignment | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 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 illuminate immediately a brake applies |1.3.1a| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| 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| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp not working and rear |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Front 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 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Front Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Drive belt excessively loose. |6.2.1d| | 1 |
| Centre Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Brake performance unable to be tested Rear brakes jammed on, unable to rotate the wheel (1.2.1 (g)) | 1 |