| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Headlamp aim out of alignment | 10 |
| Registration plate issues | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Rear Direction indicator missing |1.5.1a| | 2 |
| Front wheel spindle loose |2.3.3a| | 2 |
| Registration plate lamp issues | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Inner Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Inner Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Upper Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Stop lamp does not illuminate immediately a brake applies from front brake |1.3.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Wheel spoke excessively loose |4.2.1b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Nearside Direction indicator missing |1.5.1a| | 1 |
| Offside Direction indicator missing |1.5.1a| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| An item not tested |Manual| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 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 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Rear Upper Direction indicators not working |1.5.1c| | 1 |
| Offside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Central Front Upper Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Central Rear Outer All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |