| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 69 |
| Rear reflector on motorcycle missing |1.4.1| | 34 |
| Steering headbearing has excessive free play |2.2.2| | 28 |
| Headlamp insecure |1.2.3b| | 18 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 18 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 17 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 16 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 15 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 14 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 13 |
| Fuel cap sealing washer missing |7.2.2c| | 12 |
| Registration plate issues | 10 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 8 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 7 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Horn not working |1.7.3a| | 5 |
| Indicator tell tale not functioning |1.5.2| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 4 |
| Rear reflector on motorcycle obscured |1.4.1| | 4 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 4 |
| Front Steering headbearing has excessive free play |2.2.2| | 4 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 3 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 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 suspension has inadequate damping effect. |2.3.6c| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Front Brake performance not tested |3.3| | 2 |
| Upper Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 2 |
| Stop lamp emits other than a steady red light |1.3.1b| | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Nearside Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Fuel hose leaking |7.2.1a| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Brake locking device missing |3.2.A1e| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Headlamp damaged and function impaired |1.2.3a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Registration plate lamp issues | 2 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 2 |
| Front Headlamp insecure |1.2.3b| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Front Direction indicator deteriorated and function impaired |1.5.3a| | 2 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Nearside Front Upper Direction indicator incorrect colour |1.5.1b| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Lower Motorcycle structure cracked |6.1.1a| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear Brake pipe excessively damaged |3.2.B2a| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| An item not tested |Manual| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Centre Riders seat insecure |6.2.1a| | 1 |
| Front Upper Front position lamp missing |1.1.1a| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Front Upper Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Rear suspension component cracked |2.4.A.1a| | 1 |
| Offside Front suspension assembly component excessively corroded. |2.3.1| | 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 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Front Front mudguard can easily contact the wheel |2.3.7| | 1 |
| Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Brake hose damaged | 1 |
| Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Centre Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear suspension has a modification which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Wheel fixing loose (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Headlamp aim not tested |1.6| | 1 |
| Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Inner Fuel cap sealing washer missing |7.2.2c| | 1 |
| Nearside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Inner Front Lower Front position lamp insecure |1.1.1c| | 1 |
| Inner Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Inner Rear Lower Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Inner Rear Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Rear Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Front Lower Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Nearside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp main beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Rear Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear suspension component misaligned |2.4.A.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front shock absorber seal failed and leaking oil both front |2.3.3| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts insecure due to missing front mudguard |3.2.B2c| | 1 |
| Front Front position lamp does not face the front |1.1.1d| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Nearside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |