| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 42 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 33 |
| Headlamp aim out of alignment | 32 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 19 |
| Steering headbearing has excessive free play |2.2.2| | 19 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 17 |
| Front wheel bearings have excessive free play |2.3.5b| | 17 |
| Front wheel bearings are excessively rough |2.3.5b| | 13 |
| Registration plate issues | 12 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 10 |
| Riders seat insecure |6.2.1a| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Headlamp insecure |1.2.3b| | 6 |
| Direction indicators not working |1.5.1c| | 6 |
| Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Direction indicators not working |1.5.1c| | 3 |
| Rear Direction indicators not working |1.5.1c| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 3 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 3 |
| Front Front suspension assembly component excessively misaligned |2.3.1| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Horn is not a constant note |1.7.3c| | 2 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 2 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Horn not working |1.7.3a| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Horn sounds harsh or grating |1.7.3c| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Nearside Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| All position lamps not working front & rear (4.2.1 (a)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Footrest missing n/s & o/s (6.2.12 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure side panels (6.1.1 (b) (i)) | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Upper Handlebar deformed |2.1.1b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Nearside Front position lamp missing |1.1.1a| | 1 |
| Centre Front Upper Direction indicator not working |1.5.1c| | 1 |
| Centre Rear Upper Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Indicator tell tale not operating correctly |1.5.2| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| An item not tested |Manual| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Rear Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Centre Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Wheel alignment incorrect which adversely affects the steering Test ride confirmed, steering affected by misalignment. |2.5.1| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 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 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Central Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Brake component leaking fluid |3.2.B4| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Direction indicators flashing more than 120 times per minute all |1.5.1c| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Direction indicators flashing less than 60 times a minute all not flashing |1.5.1c| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Offside Footrest missing |6.2.1a| | 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 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Nearside Rear Lower Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Brake lever mounting cracked |3.1.2c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front suspension assembly component loose |2.3.1| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 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 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |