| Most common failures | No# failures |
|---|
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 23 |
| Headlamp aim out of alignment | 23 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 15 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 13 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Steering headbearing has excessive free play |2.2.2| | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 9 |
| Throttle operating incorrectly |6.2.1f| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Registration plate issues | 7 |
| Front Brake lever insecure |3.1.2a| | 7 |
| Offside Front Direction indicator not working |1.5.1c| | 7 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Riders seat insecure |6.2.1a| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Steering headbearing has excessive free play |2.2.2| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear reflector on motorcycle obscured |1.4.1| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front suspension has inadequate damping effect. |2.3.6c| | 4 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Brake lever insecure |3.1.2a| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Fuel system component leaking |7.2.1a| | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Horn not working |1.7.3a| | 3 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Centre Rear Lower Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Fuel hose leaking |7.2.1a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Brake component cracked and seriously reduced in strength |3.2.A1| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Headlamp incorrect colour |1.2.1| | 2 |
| Front Brake lever mounting insecure |3.1.2a| | 2 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Brake performance not tested |3.3| | 2 |
| Registration plate lamp issues | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Front Brake lever attachment screws loose |3.1.2b| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| An item not tested |Manual| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Front Upper Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 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 Footrest insecure |6.2.1a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Centre Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Centre Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake linkage excessively corroded |3.2.A1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Offside Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Brake cable excessively corroded |3.2.A1b| | 1 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Upper Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Rear Lower Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Rear wheel has a loose wheel bolt|s| |4.2.3a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake lever so insecure that the brake cannot be readily applied |1.1.2 |e| |ii|| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Brake lever is inoperative |3.1.3c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake cable excessively corroded |3.2.A1b| | 1 |
| Front Brake lever mounting cracked |3.1.2c| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Offside Front Position lamp switch insecure |1.1.4b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Brake fluid reservoir cap missing |3.2.B1c| | 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 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear reflector on motorcycle dirty and function impaired |1.4.2a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Nearside Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Riders seat insecure |6.2.1a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Shock absorber has negligible damping effect both front forks seized (5.3.2 (b)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |