| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 26 |
| Headlamp aim out of alignment | 20 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 16 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Registration plate issues | 8 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 7 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 6 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Stop lamp remains on when the brakes are released | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Horn not working |1.7.3a| | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| 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| | 3 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Headlamp aim not tested |4.1.2 |b|| | 3 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 3 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 3 |
| Nearside Front Brake disc|s| excessively scored |3.2.A1l| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| All direction indicators not working |4.4.1 |a| |ii|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front Headlamp insecure |4.1.1 |c|| | 2 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 2 |
| Front position lamp damaged and function impaired |1.1.1b| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Nearside Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Central Front Lower Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Brake disc|s| excessively worn front |3.2.A1l| | 1 |
| Nearside Direction indicators not working Indicators do not function every time the switch is pressed. |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Vehicle identification number not legible |6.3.5a| | 1 |
| Nearside Front Upper Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Nearside Rear Outer Stop lamp does not illuminate immediately a brake applies Rear brake light does no illuminate when pressed |1.3.1a| | 1 |
| Front Direction indicator obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Front Valve stem seriously misaligned securing tube nut missing causing valve to move |5.2.3 |j|| | 1 |
| Rear Stop lamp likely to become detached |4.3.1 |c| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Nearside Steering operation linkage fouling when handlebars turned from lock to lock |2.1.4 |a|| | 1 |
| Rear Brake hose excessively damaged Thye rear brake hose is likely to rub on the rear wheel because a retaining bracket is missing,
DANGEROUS!!! |1.1.12 |b| |ii|| | 1 |
| Rear Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Indicator switch inoperative Left hand switch gear is broken and can not be operated by the rider . |4.4.2 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play notchy head bearings |2.2.2 |f| |i|| | 1 |
| Stop lamp not working front system |4.3.1 |a| |ii|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front Motorcycle structure is fractured and structural rigidity is significantly reduced |6.1.1 |a| |i|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Brake fluid not visible |1.1.10 |d| |iii|| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Centre Lower Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Rear Brake caliper|s| insecure Rear brake caliper mounting broken |3.2.A1j| | 1 |
| Central Front Stop lamp does not illuminate immediately a brake applies Front brake light does not work |1.3.1a| | 1 |
| Central Rear Stop lamp does not illuminate immediately a brake applies Rear brake light does not work |1.3.1a| | 1 |
| Horn not working Horn does not work when activated |1.7.3a| | 1 |
| Central Front Steering movement excessively `notchy` with the wheel raised Steering head bearings notchy in center |2.2.1b| | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies front control |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear control |1.3.1a| | 1 |
| Nearside Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Direction indicator insecure |1.5.3b| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Direction indicator not working All |1.5.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Roller brake test indicates a binding brake FRONT |3.3.A1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Stop lamp not working front control |4.3.1 |a| |ii|| | 1 |
| Offside Front Upper Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Direction indicator obviously incorrectly positioned Rear indicators insufficient separation distance |4.4.3 |a|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Stop lamp does not illuminate immediately a brake applies front application |1.3.1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front 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 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Brake has no recorded effort at a wheel no pressure at lever (1.2.1 (a) (ii)) | 1 |
| Nearside Front Handlebar grip missing grip missing (2.2.1 (d) (i)) | 1 |
| Central Front Handlebar deformed to the extent that steering is affected Handlebar strengthening stay partially disconnected, loose, could cause injury (2.2.1 (c) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering operation impeded by a leg shield (2.1.4 (e)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play hub (5.1.3 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Suspension arm pin or bush excessively worn engine mount to frame pivot bush on left side (5.3.4 (a) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Position lamp not working Rear light brake light ok, bulb!! (4.2.1 (a)) | 1 |
| Front Steering headbearing excessively stiff or notchy They are shot (2.2.2 (f) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Brake lever insecure rear brake lever (1.1.2 (e) (i)) | 1 |
| Position lamp switch insecure (4.2.2 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Central Front Upper Horn not working (7.7 (a)) | 1 |
| Central Front Upper Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Upper Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| All position lamps light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |