| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 9 |
| Headlamp aim beam image kick up to the offside |1.6| | 9 |
| Steering headbearing has excessive free play |2.2.2| | 8 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 8 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 6 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 6 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Registration plate issues | 4 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Nearside Direction indicators not working |1.5.1c| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear position lamp damaged and function impaired |1.1.1b| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 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 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Brake component leaking fluid |3.2.B4| | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Plate brake test No brake control achieves an efficiency of 30%. |3.3.B2a| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Headlamp switch insecure |1.2.4| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Offside Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Plate brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.B1c| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing So stiff as to be dangerous |2.2.1a| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Brake hose excessively deteriorated | 1 |
| Rear Brake lining|s| less than 1.5 mm thick No lining left on pads |3.2.A1f|i|| | 1 |
| Direction indicators flashing more than 120 times per minute Increase to over 120 flashes per minute when horn is applied |1.5.1c| | 1 |
| Horn is not continous or uniform When used with indicators |1.7.3c| | 1 |
| Front Front shock absorber seal failed and leaking oil Front forks leaking,oil near front caliper |2.3.3| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering Wiring loom |2.1.2a| | 1 |
| Exhaust has part of the system missing Mounting bolt |7.1.1a| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Centre Front Upper Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Outer Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Rear Upper Riders seat insecure |6.2.1a| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Lower Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Front suspension assembly component missing |2.3.1| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Front wheel spindle loose |2.3.5a| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Headlamp not working on dipped beam no beam pattern on dipp beam |4.1.1 |a| |ii|| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Headlamp insecure head light panel is insecure |4.1.1 |c|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Exhaust has part of the system missing |7.1.1a| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Nearside Front All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Centre Front Upper Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Centre Rear Upper Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Upper Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Centre Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Upper Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |