| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 51 |
| Registration plate issues | 18 |
| Front Brake disc|s| cracked |3.2.A1g| | 10 |
| Horn not working |1.7.3a| | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| 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| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear 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 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear wheel rotation likely to be impeded rear mud guard insecure |6.2.1b| | 1 |
| Seat insecure rear mud guard |6.2.1a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Central Front Horn not working |1.7.3a| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear suspension has a fracture of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Brake clevis joint locking device missing |3.5.1l| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Service brake efficiency below requirements |1.2.2 |a| |i|| | 1 |
| Offside Rear Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Throttle operating incorrectly sticking on |6.2.1f| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear shock absorber insecurely mounted has broken off the swinging arm mounting |2.4.A.3b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Position lamp light intensity significantly reduced |4.2.3 |a| |ii|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Exhaust mounting does not fully support the exhaust system front exhaust insecure |7.1.1.c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Brakes imbalanced across an axle | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Rear All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Offside Rear All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Pillion seat insecure |6.2.6 |a| |ii|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Rear Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Motorcycle structure cracked REG BRACKET |6.1.1a| | 1 |
| Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Exhaust excessively deteriorated exhaust heat shield insecure |7.1.1a| | 1 |
| Brake hose damaged | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Brake component is excessively corroded |3.1.5| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear 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 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies on front brake application (1.3.1a) | 1 |
| Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Central Front Upper Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Headlamp aim not tested Headlight in-op. (4.1.2 (b)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Fuel system component leaking excessively or a risk of fire carbs leaking fuel excessively (6.1.3 (b) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced chassis (6.1.1 (c) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| All position lamps not working Defective fuse replaced (4.2.1 (a)) | 1 |