| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 33 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 29 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 25 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 15 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 13 |
| Steering headbearing has excessive free play |2.2.2| | 12 |
| Registration plate issues | 9 |
| Headlamp insecure |1.2.3b| | 9 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 9 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Rear reflector on motorcycle obscured |1.4.1| | 6 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Riders seat insecure |6.2.1a| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Front Headlamp insecure |1.2.3b| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Headlamp insecure |4.1.1 |c|| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Centre Front Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Front suspension assembly component excessively corroded. |2.3.1| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| 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| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Handlebar deformed |2.1.1b| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Rear Brake lever insecure |3.1.2a| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake cable has a significantly damaged outer casing. |3.2.A1b| | 1 |
| Rear Brake cable knotted |3.2.A1b| | 1 |
| Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Centre Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Brake lever pivots excessively worn |3.1.3a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Registration plate lamp issues | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp aim headlamp deteriorated and function impaired no image |1.2.3a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Exhaust has a major leak of exhaust gases down pipe fractured. |6.1.2 |a|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Centre Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Centre Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Outer Rear An item not tested |Manual| | 1 |
| An item not tested |Manual| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking centre stand |6.1.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies replaced broken stop light switch |1.3.1a| | 1 |
| Offside Exhaust mounting missing |7.1.1c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Brake lever excessively damaged |3.2.A1c| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.5a| | 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 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Position lamp switch faulty |1.1.4a| | 1 |
| Offside Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Centre Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Fuel system component leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Riders seat insecure Does not lock (6.2.5 (a) (ii)) | 1 |
| Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 1 |
| Front Brake disc contaminated With oil or grease (1.1.14 (b)) | 1 |
| Handlebar mounting so insecure that steering is adversely affected Handle bars move independent to lower yolks (2.2.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear All position lamps not working rear light not working (4.2.1 (a)) | 1 |
| Rear Lower All position lamps not working no number plate light (4.2.1 (a)) | 1 |
| Rear Suspension arm pin or bush excessively worn engine mount bush worn to excess (5.3.4 (a) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp not working not operating from rear brake (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp not working brake switch (4.3.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Central Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition Hole in exhaust (8.1.1 (a)) | 1 |
| Exhaust has a major leak of exhaust gases hole in exhaust (6.1.2 (a)) | 1 |
| Horn sound not in accordance with requirements very poor (7.7 (c)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working Front switch n/w (4.3.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |