| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Throttle operating incorrectly Throttle lever sticking open and not shutting off on release |6.2.1f| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Registration plate issues | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Centre Front Upper Horn not working |1.7.3a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| An item not tested |Manual| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 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 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front shock absorber seal failed and leaking oil BOTH |2.3.3| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |