| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Registration plate issues | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Registration plate lamp issues | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| 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)) | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp showing white light to the rear (4.3.3 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.B.7| | 1 |
| Trikes, quads or pre-68 vehicles, service brake imbalanced across an axle |3.7.B.5b| | 1 |
| Passenger`s seat insecure |6.2.A.1| | 1 |
| Parking brake lever inappropriately repaired |3.1.8| | 1 |
| Rear Mechanical brake component has restricted free movement | 1 |
| Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Front Headlamp not working on main beam |1.7.5a| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Hazard warning switch inoperative |4.4.2 |a| |ii|| | 1 |
| Nearside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Offside Rear Upper Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Central Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Stop lamp not working Front switch. (4.3.1 (a) (ii)) | 1 |
| Shock absorber has a serious fluid leak o/s & n/s |5.3.2 |b|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Upper Front suspension assembly component loose |2.3.1| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Shock absorber has a serious fluid leak N/S and O/S front fork legs (5.3.2 (b)) | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Brake excessively binding Rear wheel binding on (1.2.1 (f)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Front Brake lever insecure |3.1.2a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Stop lamp not working on application of front brake (4.3.1 (a) (ii)) | 1 |