| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Registration plate lamp issues | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| front brake binding |3.7.B.1| | 1 |
| Nearside Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Offside Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Brake rod excessively worn and seriously weakened |3.5.1e| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Rear Position lamp not working side light |4.2.1 |a|| | 1 |
| Central Front Service brake excessively binding |1.2.1 |f|| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Outer Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Offside Front Obligatory mirror missing |8.1.1| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.6.G.1f| | 1 |
| Brake hose leaking |3.6.A.1| | 1 |
| Offside Rear fog lamp missing |1.3.2a| | 1 |
| Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Exhaust system not adequately supported |7.1.1| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.D.4| | 1 |
| Rear Brake pedal functionally incomplete |3.3.A.1a| | 1 |
| Rear Sub-frame attachment bracket/mounting modified and seriously weakened |2.4.A.2| | 1 |
| Service brake: efficiency below requirements |3.7.D.4| | 1 |
| Parking brake: efficiency below requirements |3.7.D.4| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Front Front shock absorber leaking oil |9.2.7b| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Registration plate issues | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |