| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Brake hose has insufficient room to move | 2 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front brake caliper securing device excessively deteriorated |3.5.1j| | 1 |
| Offside Rear Brake cable has restricted free movement |3.5.1k| | 1 |
| Indicator switch faulty |1.4.A.1| | 1 |
| Offside Front Brake hose leaking |3.6.A.1| | 1 |
| Front front brake binding |3.7.B.1| | 1 |
| Centre Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Front Front position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Front Front position lamp|s| missing |1.1.A.3a| | 1 |
| Rear Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.C.1a| | 1 |
| Offside Front shock absorber leaking oil |9.2.7b| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Fuel tank leaking Under side of tank area. |6.1.3 |b| |i|| | 1 |
| Rear Outer Position lamp has a product on the lens or light source which shows white light to the rear both (4.2.3 (b) (ii)) | 1 |
| Nearside Front Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Rear Direction indicators not working |1.4.A.2c| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Nearside Front Shock absorber has negligible damping effect |2.7.5| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Offside Front Shock absorber has negligible damping effect |2.7.5| | 1 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Brake cable locking device insecure |3.5.1l| | 1 |
| Nearside Rear Road wheel distorted |4.2.A.1a| | 1 |
| Offside Rear Road wheel distorted |4.2.A.1a| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Brakes imbalanced across an axle | 1 |
| Axle with an unsafe modification rear axle out of alignment (5.1.1 (c) (i)) | 1 |
| Handlebar insecure to the extent that detachment is likely (2.2.1 (d) (ii)) | 1 |
| Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) | 1 |
| Offside Brake pedal spongy |3.3.B.1b| | 1 |
| Central Front Drivers seat insecure (6.2.5 (a) (ii)) | 1 |
| Central Rear Suspension arm attachment bracket/mounting insecure and impairing directional stability suspension swing arm has exseve movement (5.3.3 (a) (ii)) | 1 |
| Offside Rear Brake hose damaged and likely to fail flex brake insecure (1.1.12 (a)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Steering locking device insecure |2.2.C.1g| | 1 |
| Brake master cylinder/servo mounting prescribed area is excessively corroded |3.6.C.3| | 1 |
| Nearside Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Rear Integral body structure has a fractured which is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front position lamp|s| missing |1.1.A.3a| | 1 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Parking brake not fitted on at least one wheel on a 3 wheeled vehicle |3.1.1| | 1 |
| Nearside Exhaust has part of the system excessively deteriorated |7.1.1a| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Front suspension assembly component excessively corroded. |9.2.5d| | 1 |
| Offside Front suspension assembly component excessively corroded. |9.2.5d| | 1 |
| Nearside Front shock absorber leaking oil |9.2.7b| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Offside Rear Lower Anti-roll bar attachment bracket/mounting insecure linkage bolt loose |5.3.3 |a| |i|| | 1 |
| Nearside Rear Suspension component pin or bush likely to become detached bottom bolt not long enough for lock nut to be effective |5.3.4 |a| |ii|| | 1 |
| Offside Rear Suspension component pin or bush likely to become detached bottom bolt not long enough for lock nut to be effective |5.3.4 |a| |ii|| | 1 |