| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 53 |
| Steering headbearing has excessive free play |2.2.2| | 27 |
| Rear reflector on motorcycle missing |1.4.1| | 27 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 24 |
| Registration plate issues | 19 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 19 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 18 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 16 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 12 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Headlamp insecure |1.2.3b| | 9 |
| Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front Steering headbearing has excessive free play |2.2.2| | 6 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Direction indicators not working |1.5.1c| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Fuel cap sealing washer missing |7.2.2c| | 6 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 5 |
| Offside Rear Direction indicators not working |1.5.1c| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 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| | 4 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Front suspension has inadequate damping effect. |2.3.6c| | 4 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front position lamp insecure |1.1.1c| | 3 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 3 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Brake lever insecure |3.1.2a| | 3 |
| Front Headlamp insecure |1.2.3b| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Brake lever mounting insecure |3.1.2a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Front mudguard insecure |2.3.7| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Brake lever insecure |3.1.2a| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 2 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Front position lamp missing |1.1.1a| | 2 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Brake lever pivots excessively worn |3.1.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Brake lever cracked |3.1.2c| | 1 |
| Offside Headlamp missing |1.2.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Fuel system component leaking near carb |7.2.1a| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp no switch fitted |1.2.2b|i|| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Offside Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake lever cracked |3.1.2c| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Brake component is excessively corroded |3.1.5| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Rear Upper Fuel system component leaking |7.2.1a| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Rear Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Front Indicator switch defective |1.5.4| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Brake lever attachment screws missing |3.1.2b| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Nearside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Centre Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Centre Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition silencer holed |8.1.1 |a|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies control |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies control |1.3.1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock on right lock |2.1.4| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Front Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Nearside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Centre Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Upper Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Rear position lamp insecure |1.1.1c| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 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 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no beam pattern (4.1.2 (a)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen no image pattern. (4.1.2 (a)) | 1 |
| Shock absorber has negligible damping effect both front shock absorbers have no damping effect. (5.3.2 (b)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working Both brake levers (4.3.1 (a) (ii)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Front Shock absorber has negligible damping effect Siezed (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |