| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 44 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 33 |
| Rear reflector on motorcycle missing |1.4.1| | 29 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 28 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 28 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 27 |
| Steering headbearing has excessive free play |2.2.2| | 25 |
| Registration plate issues | 16 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 14 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 13 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 11 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 10 |
| Horn not working |1.7.3a| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 8 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 7 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 6 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 6 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 5 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 4 |
| Rear wheel insecure |4.2.3b| | 4 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 4 |
| Rear reflector on motorcycle obscured |1.4.1| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Handlebar mounting clamp loose |2.1.1a| | 4 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 4 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| 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 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 3 |
| Nearside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front suspension assembly component excessively corroded. |2.3.1| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Brake caliper|s| insecure |3.2.A1j| | 3 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 3 |
| Nearside Steering lock stop ineffective |2.1.3| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Offside Front suspension assembly component excessively corroded. |2.3.1| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Nearside Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Fuel system component insecure |7.2.1b| | 2 |
| Offside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Nearside Steering lock stop maladjusted |2.1.3| | 2 |
| Front suspension assembly component excessively misaligned |2.3.1| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Centre Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Nearside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Outer Horn not working |1.7.3a| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Fork yoke deformed |2.1.1b| | 1 |
| Front Brake component has an inadequate repair |3.1.5| | 1 |
| Upper Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Brake master cylinder defective but brake still operating window sight very deterated (1.1.10 (b) (i)) | 1 |
| Rear Position lamp likely to become detached lens (4.2.1 (c) (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 Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a 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 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Front Motorcycle structure cracked |6.1.1a| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Brake lever attachment screws loose |3.1.2b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| An item not tested |Manual| | 1 |
| Upper Brake lever excessively damaged |3.2.A1c| | 1 |
| Upper Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front position lamp does not illuminate immediately when switched on side light |1.1.3a| | 1 |
| Nearside Indicator switch defective |1.5.4| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Brake lever attachment screws loose |3.1.2b| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded front pads worn uneven |3.2.A1h| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 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 |
| Rear Brake lever mounting cracked |3.1.2c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Lower Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front Lower Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Centre Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Centre Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Fuel cap ineffective no seal (6.1.3 (b) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticking on (6.2.7 (a) (ii)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Centre Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Centre Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Offside Front Position lamp switch faulty |1.1.4a| | 1 |
| Nearside Front Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Centre Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Centre Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Outer Front Horn is not continous or uniform |1.7.3c| | 1 |
| Nearside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Brake performance not tested |3.3| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Brake cylinder damaged (1.1.16 (a) (i)) | 1 |
| Brake lever is inoperative |3.1.3c| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Centre Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Nearside Fuel system component insecure Airbox. |7.2.1b| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Front suspension has excessive corrosion which reduces the strength of a load bearing member or its supporting structure. |2.3.8| | 1 |
| Offside Front Front suspension has excessive corrosion which reduces the strength of a load bearing member or its supporting structure. |2.3.8| | 1 |
| Outer Front Upper Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Brake hose excessively deteriorated | 1 |
| Nearside Front Lower Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Rear Upper Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Upper Indicator switch defective |1.5.4| | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Forks excessively corroded (2.2.2 (d) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Handlebar mounting insecure loose (2.2.1 (a) (i)) | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Brake lever has inadequate reserve travel rear brake low effort |3.1.3b| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Lower Fork yoke deformed |2.1.1b| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Central Rear Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Central Rear Steering lock stop ineffective fork legs make contact with the fairing and rear of headlamp |2.1.3| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Fuel pipe leaking |7.2.1a| | 1 |
| Front Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Rear Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |