| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Brake pipe excessively corroded | 6 |
| Parking brake: efficiency below requirements |3.7.B.7| | 4 |
| Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 4 |
| Rear parking brake recording little or no effort | 3 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 2 |
| Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 2 |
| Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6| | 2 |
| Registration plate issues | 2 |
| Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 2 |
| Steering box insecure |2.2.B.1a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Rear Brake cable has restricted free movement |3.5.1k| | 1 |
| Offside Front Drag link end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Inner Drag link end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Offside Inner Drag link end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Nearside Front coil spring broken |2.4.C.1a| | 1 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Outer Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Inner Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Rear fog lamp not working |1.3.2b| | 1 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Suspension component mounting prescribed area is excessively corroded o/s/f inner/outer sill |2.4.A.3| | 1 |
| Offside Front Suspension component mounting prescribed area is excessively corroded jacking point |2.4.A.3| | 1 |
| Nearside Front Outer Suspension component mounting prescribed area is excessively corroded sill |2.4.A.3| | 1 |
| Nearside Rear Outer Suspension component mounting prescribed area is excessively corroded sill |2.4.A.3| | 1 |
| Nearside Rear coil spring broken |2.4.C.1a| | 1 |
| Nearside Front Suspension component mounting prescribed area is excessively corroded inner wheel arch |2.4.A.3| | 1 |
| Offside Front Suspension component mounting prescribed area is excessively corroded inner wheel arch |2.4.A.3| | 1 |
| Offside Suspension component mounting prescribed area is excessively corroded inner sill / floor joint |2.4.A.3| | 1 |
| Nearside Sub-frame corroded and seriously weakened |2.4.G.1| | 1 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Engine mounting/bracket bracket excessively loose nut loose (6.1.8 (a) (ii)) | 1 |
| Motorcycle structure modified such that it is likely to adversely affect braking or steering battery insecure (6.1.1 (d) (ii)) | 1 |
| Nearside Fuel system component leaking carburettor leaking (6.1.3 (b) (i)) | 1 |
| Front All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Inner Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Inner Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a| | 1 |
| Power steering component|s| leaking |2.3.3b| | 1 |
| Centre Rear Exhaust mounting missing |7.1.1b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Rear Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Rear Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Front Lower Ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Rear Lower Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Nearside Rear Subframe mounting prescribed area is inadequately repaired |2.4.A.3| | 1 |
| Brakes imbalanced across an axle | 1 |
| Nearside Front Steering column universal joint has excessive play |2.1.5| | 1 |
| Nearside Rear Hand operated control valve excessively corroded |3.2.1a| | 1 |
| Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering lock stop maladjusted clutch cable traps on left lock |2.1.3| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Decelerometer brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Exhaust system insecure |6.1.2 |a|| | 1 |
| Throttle operating incorrectly revs picking up |6.2.7 |a| |i|| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Body insecure and dangerous to other road users |6.1.B.1b| | 1 |
| Offside Front Brake hose bulging under pressure |3.6.B.3| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Offside Front Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Windscreen wiper blade missing |8.2.2| | 1 |
| Windscreen wiper does not clear the windscreen effectively | 1 |
| Offside Front Brake hose excessively damaged |3.6.B.4d| | 1 |
| Brake hose has insufficient room to move | 1 |
| Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1| | 1 |