| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 42 |
| Headlamp aim out of alignment | 30 |
| Registration plate issues | 30 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 24 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 22 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 16 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 15 |
| Offside Steering lock stop ineffective |2.1.3| | 15 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 14 |
| Offside Steering lock stop missing |2.1.3| | 14 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 13 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Front wheel bearings are excessively rough |2.3.5b| | 12 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Steering headbearing has excessive free play |2.2.2| | 11 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 10 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Stop lamp remains on when the brake is released |1.3.1e| | 9 |
| Horn not working |1.7.3a| | 8 |
| Riders seat insecure |6.2.1a| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| 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| | 8 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 7 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 7 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 7 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 6 |
| Nearside Steering lock stop missing |2.1.3| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Front Steering lock stop ineffective |2.1.3| | 6 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Nearside Rear Direction indicators not working |1.5.1c| | 5 |
| Nearside Steering lock stop ineffective |2.1.3| | 5 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 5 |
| Direction indicators not working |1.5.1c| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Rear reflector on motorcycle obscured |1.4.1| | 4 |
| Rear Footrest missing |6.2.1a| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Headlamp aim not tested |1.6| | 4 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 4 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 3 |
| Nearside 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 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Registration plate lamp issues | 3 |
| Front Direction indicator not working |1.5.1c| | 3 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 3 |
| Offside Front Steering lock stop missing |2.1.3| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Brake hose damaged | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Steering lock stop missing |2.1.3| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Front Fairing insecure and likely to impede the steering |2.1.2e| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Brake cylinder severely corroded |3.2.B1b| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Offside Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake lever mounting insecure |3.1.2a| | 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 Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel hose leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Rear Fuel system component leaking |7.2.1a| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Stop lamp missing |1.3.3a| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Fuel system component leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Front 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 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Plate brake test indicates a severely grabbing brake |3.3.B1b| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Gradient brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.D1b| | 1 |
| Nearside Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake cable knotted |3.2.A1b| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Rear Rear reflector on sidecar missing |1.4.1| | 1 |
| Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Upper Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Offside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Outer Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Centre Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Brake lever mounting cracked |3.1.2c| | 1 |
| Brake performance not tested |3.3| | 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 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Brake lever mounting cracked |3.1.2c| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake component has an inadequate repair |3.1.5| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Offside Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Offside Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Nearside Rear Lower Brake cable badly frayed |3.2.A1b| | 1 |
| Outer Front Upper Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Inner Rear Upper Riders seat insecure |6.2.1a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 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 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Headlamp main beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear suspension component cracked |2.4.A.1a| | 1 |
| Rear Rear position lamp missing |1.1.1a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |