| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Registration plate lamp issues | 21 |
| Windscreen wiper does not clear the windscreen effectively | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Nearside Stop lamp not working |1.2.1b| | 9 |
| Offside Stop lamp not working |1.2.1b| | 9 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 9 |
| Registration plate issues | 6 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 6 |
| Parking brake: efficiency below requirements |3.7.B.7| | 6 |
| Exhaust system not adequately supported |7.1.1| | 6 |
| Rear position lamp insecure |1.1.1c| | 5 |
| Front brake disc in such a condition that it is seriously weakened | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 4 |
| Rear parking brake recording little or no effort | 4 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 3 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 3 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 3 |
| Offside Rear coil spring broken |2.4.C.1a| | 3 |
| Rear Exhaust system not adequately supported |7.1.1| | 3 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear brake binding | 3 |
| Nearside Rear Stop lamp not working |1.2.1b| | 3 |
| Brake pipe excessively corroded | 3 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Rear coil spring broken |2.4.C.1a| | 2 |
| Brakes imbalanced across an axle | 2 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 2 |
| Brake hose damaged | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Nearside Rear Rear wheel bearing rough when rotated |2.6.1| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Windscreen washer not working | 2 |
| Rear fog lamp not working |1.3.2b| | 2 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 2 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Rear Wheel bolt|s| missing |4.2.A.1e| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 2 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 2 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 2 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Oil leaking excessively from engine |8.4.1 |a| |i|| | 1 |
| Offside Rear Outer Suspension component mounting prescribed area excessively corroded significantly reducing structural strength sill |5.3.6 |a| |i|| | 1 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Offside Headlamp switch insecure |1.2.4| | 1 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 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 |
| Horn not working |1.7.3a| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Brake pipe leaking |3.6.A.1| | 1 |
| Electronic stability system warning lamp indicates a fault |3.4.1c| | 1 |
| Centre Upper Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust system not adequately supported rear mountain broken |7.1.1| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Inner Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Headlamp insecure |1.7.3| | 1 |
| Nearside Front Headlamp aim not tested |1.8.A.1c| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Offside Front Steering rack gaiter insecure |2.2.D.2d| | 1 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Nearside Windscreen wiper blade missing |8.2.2| | 1 |
| Nearside Front Statutory seat belt missing |5.1.1| | 1 |
| Centre Rear Statutory seat belt missing |5.1.1| | 1 |
| Offside Rear passenger seat cannot be secured in the upright position. |6.2.3| | 1 |
| Nearside Rear passenger seat cannot be secured in the upright position. |6.2.3| | 1 |
| Offside Outer Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Offside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Undertray insecure |8.1.1 |b| |i|| | 1 |
| Offside Front Side repeater incorrect colour |1.4.A.2f| | 1 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Drag link end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Drag link end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front coil spring broken |2.4.C.1a| | 1 |
| Offside Front coil spring broken |2.4.C.1a| | 1 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Anti-lock braking system warning lamp indicates an ABS fault | 1 |
| Nearside Rear Stop lamp has less than 50% of the light sources illuminating |1.2.1b| | 1 |
| Nearside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Nearside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Rear brake disc excessively scored |3.5.1h| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Rear Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Brake pipe at imminent risk of failure or fracture pipe to flexi burst |1.1.11 |a|| | 1 |
| Nearside Headlamp aim beam image obviously incorrect bulb in wrong |1.8.A.1b| | 1 |
| Offside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 1 |
| Offside Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Nearside Rear Brake cable has wires broken and is significantly weakened cable broken/ missing |3.5.1b| | 1 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| rear parking |secondary| brakes imbalanced | 1 |
| Nearside Upper Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Fuel system component leaking |7.2.3| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Front Anti-roll bar linkage has excessive play in a ball joint both |2.4.G.2| | 1 |
| Nearside Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Front Wheel bolt|s| missing both sides |4.2.A.1e| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Offside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt |2.1.3 |g| |ii|| | 1 |
| Offside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 1 |
| Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt |2.1.3 |g| |ii|| | 1 |
| Nearside Rear Position lamp not working sidelamp |4.2.1 |a|| | 1 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Front Steering system has excessive free play detected at the steering wheel |steering rack fitted| Steering rackend |2.2.A.1b| | 1 |
| Offside Front Steering system has excessive free play detected at the steering wheel |steering rack fitted| Steering rackend |2.2.A.1b| | 1 |
| Front brake disc excessively pitted |3.5.1h| | 1 |
| Nearside Rear brake disc excessively pitted |3.5.1h| | 1 |
| Brake master cylinder fluid level below minimum level |3.6.G.1e| | 1 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Front Headlamps matched pair are not the same shape bulb fitted incorrectly |1.7.6| | 1 |
| Centre Stop lamp not working |1.2.1b| | 1 |
| Offside Front Wheel bolt|s| missing |4.2.A.1e| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front Suspension arm has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Driver`s door cannot be opened from inside the vehicle |6.2.B.1b| | 1 |
| Nearside Front coil spring cracked |2.4.C.1a| | 1 |
| Offside Front Direction indicator excessively damaged so that it is not visible from a reasonable distance |1.4.A.2e| | 1 |
| Rear Exhaust system not adequately supported Hanger |7.1.1| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 1 |
| Driver`s seat insecure |6.2.A.1| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Headlamp aim not tested |1.8.A.1c| | 1 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Rear Body has a projection caused by damage |6.1.C.1| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Centre Front Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 1 |
| Nearside Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Offside Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Nearside Seat belt anchorage prescribed area strength or continuity significantly reduced outer sill |7.1.1 |a| |i|| | 1 |
| Offside Seat belt anchorage likely to become detached in the event of a collision outer sill |7.1.1 |a| |ii|| | 1 |
| Nearside Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases centre to rear |6.1.2 |a|| | 1 |
| Exhaust system insecure centre and rear silencers |6.1.2 |a|| | 1 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 1 |
| Offside Front coil spring fractured |2.4.C.1a| | 1 |
| Nearside Front Position lamp not working |4.2.1 |a| |ii|| | 1 |
| Nearside Front All position lamps not working |4.2.1 |a|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b| | 1 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 1 |
| Offside Rear Road wheel more than one fixing missing |5.2.1 |a| |ii|| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Exhaust has a major leak of exhaust gases CENTRE AND REAR |7.1.2| | 1 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 1 |
| Exhaust system not adequately supported Front hanger bracket corroded and broken off |7.1.1| | 1 |
| Offside front brake binding |3.7.B.1| | 1 |
| Front brake application uneven | 1 |
| rear parking |secondary| brake grabbing severely Both |3.7.B.6b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii)) | 1 |
| Nearside Front Brake disc significantly and obviously worn inner (1.1.14 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn inner (1.1.14 (a) (i)) | 1 |
| Nearside Rear Stop lamp(s) likely to become detached lens damaged sharp edges (4.3.1 (c) (ii)) | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i)) | 1 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Front Seat belt anchorage prescribed area strength or continuity significantly reduced floor (7.1.1 (a) (i)) | 1 |
| Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Stop lamp(s) switch with a delay in operation sticky switch (4.3.2 (a) (ii)) | 1 |
| Nearside Front Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Nearside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i)) | 1 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Front Inner Brake disc significantly and obviously worn face (1.1.14 (a) (i)) | 1 |
| Offside Front Inner Brake disc significantly and obviously worn face (1.1.14 (a) (i)) | 1 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Front Suspension arm ball joint excessively worn swing arm (5.3.4 (a) (i)) | 1 |
| Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt insecure (2.1.3 (g) (ii)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Suspension component mounting prescribed area so inadequately repaired that control of the vehicle is likely to be adversely affected (5.3.6 (a) (ii)) | 1 |
| Offside Rear Suspension component mounting prescribed area so inadequately repaired that control of the vehicle is likely to be adversely affected (5.3.6 (a) (ii)) | 1 |
| Emissions not tested Excessive smoke when revved (8.2.1.2 (d)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 1 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Offside Rear Integral body structure or chassis has excessive corrosion to the extent that overall security or stability of the body is impaired underside of the floor (as marked) (6.2.2 (d) (ii)) | 1 |
| Nearside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii)) | 1 |
| Nearside Rear Shock absorbers has a serious fluid leak | 1 |
| Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |