| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 36 |
| Rear reflector on motorcycle missing |1.4.1| | 19 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 16 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 14 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Registration plate issues | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Headlamp insecure |1.2.3b| | 6 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Offside Rear Direction indicator not working |1.5.1c| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Registration plate lamp issues | 3 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Motorcycle structure excessively damaged |6.1.1a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Horn sounds harsh or grating |1.7.3c| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Front Brake master cylinder insecure |1.1.10 |c|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking centre stand spring stretched |6.1.1c| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Headlamp at least one does not illuminate on dipped beam dim |1.2.2a|i|| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Riders seat insecure |6.2.1a| | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Outer Rear Direction indicator not working |1.5.1c| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Fuel cap leaking seal missing |6.1.3 |b| |i|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Outer Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Nearside Front Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Headlamp insecure |1.2.3b| | 1 |
| Offside Headlamp insecure |1.2.3b| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Brake lever insecure |3.1.2a| | 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 |
| Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Offside Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen dip beam |4.1.2 |a|| | 1 |
| Stop lamp not working with r/h lever |4.3.1 |a| |ii|| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies not working with r/h brake lever. |1.3.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired high and no pattern |1.2.3a| | 1 |
| Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Rear Fuel hose leaking |7.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Shock absorber has a serious fluid leak forkseals failed |5.3.2 |b|| | 1 |
| Front Brake disc contaminated oil from forks |1.1.14 |b|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Central Front Lower Front wheel insecure wrong wheel spacers not suited |4.2.3b| | 1 |
| Nearside Rear Lower Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Exhaust has a major leak of exhaust gases Split at header, excessively noisy (6.1.2 (a)) | 1 |
| Throttle operating incorrectly Sticking (6.2.7 (a) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Fuel cap leaking seal missing (6.1.3 (b) (i)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Fuel system component leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Brake lever has insufficient reserve travel Rear brake control (1.1.2 (a)) | 1 |
| Fuel cap leaking Seal missing (6.1.3 (b) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure main stand hitting floor (6.1.1 (b) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 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 |