| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 39 |
| Rear reflector on motorcycle missing |1.4.1| | 38 |
| Registration plate issues | 22 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 8 |
| Horn not working |1.7.3a| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Riders seat insecure |6.2.1a| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| 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| | 5 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Offside Front Footrest insecure |6.2.1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Rear Brake disc|s| cracked |3.2.A1g| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Nearside Handlebar deformed |2.1.1b| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Fuel system component insecure |7.2.1b| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Nearside Front Direction indicator missing |1.5.1a| | 2 |
| Nearside Rear Direction indicator missing |1.5.1a| | 2 |
| Offside Front Direction indicator missing |1.5.1a| | 2 |
| Offside Rear Direction indicator missing |1.5.1a| | 2 |
| Brake hose excessively deteriorated | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Rear mono-shock insecure |2.4.B.4| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Brake lever mounting cracked |3.1.2c| | 1 |
| Centre Rear Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Centre Front Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Offside Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Riders seat missing |6.2.1a| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 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 Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Centre Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Fuel system component insecure tank |7.2.1b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Throttle operating incorrectly Throttle sticking open on right hand lock |6.2.1f| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Centre Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Centre Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering handle bars and clocks. |2.1.2a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Throttle operating incorrectly throttle does not return when released |6.2.1f| | 1 |
| Offside Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Clutch lever pivot lock nut |6.2.1h| | 1 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Rear Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering lock stop ineffective steering fouling so doesnt reach lock stops |2.1.3| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Front Upper Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Lower Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Lower Steering lock stop ineffective |2.1.3| | 1 |
| Centre Front Upper Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Centre Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Rear Lower Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear Lower Brake hose fouling |3.2.B3b| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Upper Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Centre Front Upper Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Rear Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Lower Footrest insecure |6.2.1a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Front Brake locking device missing |3.2.A1e| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Offside Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake back plate|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Centre Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Offside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Brake hose fouling |3.2.B3b| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Direction indicator not working Left Hand (4.4.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |