| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Windscreen wiper does not clear the windscreen effectively | 12 |
| Registration plate issues | 11 |
| Nearside Stop lamp not working |1.2.1b| | 9 |
| Registration plate lamp issues | 8 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 6 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 5 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 5 |
| Brake pipe excessively corroded | 4 |
| Offside Rear Rear fog lamp not working |1.3.2b| | 4 |
| Offside Rear Stop lamp not working |1.2.1b| | 4 |
| Centre Stop lamp not working |1.2.1b| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Offside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Front coil spring broken |2.4.C.1a| | 2 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Upper Stop lamp not working |1.2.1b| | 2 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 2 |
| Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 2 |
| Offside Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 2 |
| Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 2 |
| Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 2 |
| Nearside Front coil spring broken |2.4.C.1a| | 2 |
| Service brake: efficiency below requirements |3.7.C.1a| | 2 |
| Offside Rear Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 2 |
| Windscreen has damage | 2 |
| Emissions not tested |7.3.A.1| | 2 |
| Offside Rear Radius arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Nearside Rear Radius arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 2 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Nearside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2| | 2 |
| Anti-lock braking system warning lamp indicates an ABS fault | 2 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Nearside Rear Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Front Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Rear Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Offside Rear Trailing arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Wheel spoke missing |4.2.1b| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Nearside 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 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Position lamp switch faulty |1.1.4a| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 1 |
| Horn missing |1.7.1| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Centre Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 1 |
| Rear fog lamp not working |1.3.2b| | 1 |
| Rear fog lamp tell tale not working |1.3.1b| | 1 |
| Rear fog lamp missing |1.3.2a| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Front Wheel fixing missing |multiple fixings| |5.2.1 |a| |i|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Rear Shock absorbers has a serious fluid leak | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Emissions not tested (8.2.1.2 (d)) | 1 |
| Offside Front Tie bar/rod insecure |2.4.G.1| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 1 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Stop lamp not working high level |1.2.1b| | 1 |
| Nearside Rear Trailing arm rubber mounting deteriorated resulting in excessive movement arm front mount |2.4.G.2| | 1 |
| Offside Rear Trailing arm rubber mounting deteriorated resulting in excessive movement arm front mount |2.4.G.2| | 1 |
| Offside Front Anti-roll bar linkage ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 1 |
| Offside Front coil spring incomplete |2.4.C.1a| | 1 |
| Offside Front Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Tailgate cannot be secured in the closed position |6.4.1| | 1 |
| Nearside Front Anti-roll bar linkage insecure |2.4.G.1| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Front Side repeater missing |1.4.A.2b| | 1 |
| Nearside Front Front suspension retaining device missing |2.5.A.4| | 1 |
| Nearside Front Steering retaining device missing |2.2.C.1g| | 1 |
| Nearside Front Steering locking device missing |2.2.C.1g| | 1 |
| Nearside Front Brake lining|s| insecure |3.5.1g| | 1 |
| Nearside Front Road wheel bead rim badly distorted |4.2.A.1a| | 1 |
| Nearside Track rod end loose |2.2.B.1d| | 1 |
| Brake pedal anti-slip provision worn smooth |3.3.A.1b| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 1 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 1 |
| Offside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Nearside Rear Seat belt locking mechanism does not secure or release |5.2.5a| | 1 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Offside Rear Braking system leaking |3.6.A.1| | 1 |
| Offside Rear Brake pipe leaking |3.6.A.1| | 1 |
| Battery insecure |1.9.1| | 1 |
| Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Front Wheel nut|s| missing 1of5 |4.2.A.1e| | 1 |
| Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Exhaust has a major leak of exhaust gases Middle section |7.1.2| | 1 |
| Exhaust has a major leak of exhaust gases centre |7.1.2| | 1 |
| Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 1 |
| Offside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2| | 1 |
| Offside Front Anti-roll bar linkage fractured |2.4.G.1| | 1 |
| Nearside Front Anti-roll bar linkage fractured |2.4.G.1| | 1 |
| Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 1 |
| Nearside Rear 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 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Radius arm synthetic bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear Radius arm synthetic bush deteriorated resulting in excessive movement |2.4.G.2| | 1 |
| Offside Rear fog lamp missing |1.3.2a| | 1 |
| Offside Rear Anti-roll bar linkage insecure |2.4.G.1| | 1 |
| Offside Front front brake binding |3.7.B.1| | 1 |
| Offside Rear Rear fog lamp excessively deteriorated so that it is not visible from a reasonable distance |1.3.2d| | 1 |
| Nearside Front Anti-roll bar missing |2.4.G.1| | 1 |
| Nearside Front Front drive shaft coupling is insecure |2.5.C.1c| | 1 |
| Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a| | 1 |
| Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 1 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 1 |
| Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2| | 1 |
| Brake pedal anti-slip provision incomplete |3.3.A.1b| | 1 |
| Brake pedal creeps down when held under pressure |3.3.B.1a| | 1 |
| Nearside Front Anti-roll bar has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Centre Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 1 |
| Offside Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside brake disc excessively scored |3.5.1h| | 1 |
| Nearside Front brake disc excessively pitted |3.5.1h| | 1 |
| Nearside Outer Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Outer Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 1 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Offside Rear fog lamp not working |1.3.2b| | 1 |
| Nearside Front coil spring fractured |2.4.C.1a| | 1 |