| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Registration plate issues | 5 |
| Offside Rear Direction indicator not working |1.5.1c| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 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| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Brake lever attachment screws loose |3.1.2b| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Offside Front Steering lock stop maladjusted |2.1.3| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 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 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Direction indicator adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Front Brake lever cannot be applied smoothly (3.1.3d) | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |