| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 48 |
| Headlamp aim beam image kick up to the offside |1.6| | 36 |
| Rear reflector on motorcycle missing |1.4.1| | 25 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 25 |
| Drive chain excessively loose |6.2.1d| | 19 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 18 |
| Front wheel bearings are excessively rough |2.3.5b| | 14 |
| Registration plate issues | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Riders seat insecure |6.2.1a| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Steering headbearing has excessive free play |2.2.2| | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 10 |
| Stop lamp remains on when the brake is released |1.3.1e| | 10 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 9 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 8 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 7 |
| 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| | 7 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 7 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Nearside Front Direction indicator not working |1.5.1c| | 6 |
| Offside Front Direction indicator not working |1.5.1c| | 6 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Horn not working |1.7.3a| | 5 |
| Drive chain excessively tight |6.2.1d| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Fuel system component insecure |7.2.1b| | 5 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 5 |
| Nearside Rear Direction indicator not working |1.5.1c| | 5 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Footrest missing |6.2.1a| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Offside Rear Direction indicators not working |1.5.1c| | 4 |
| Brake hose damaged | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Offside Front Direction indicators not working |1.5.1c| | 4 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Nearside Front Direction indicator missing |1.5.1a| | 3 |
| Offside Front Direction indicator missing |1.5.1a| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| An item not tested |Manual| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Nearside Front Direction indicator insecure |1.5.3b| | 3 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 2 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Front Stop lamp missing |1.3.3a| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Riders seat insecure |6.2.1a| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Front suspension assembly component missing |2.3.1| | 2 |
| Front Direction indicator missing |1.5.1a| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Offside Rear Brake hose fouling |3.2.B3b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Direction indicator missing |1.5.1a| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Drive chain excessively tight |6.2.1d| | 1 |
| Rear Rear suspension component seized |2.4A2a|ii|| | 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 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen beaming wrong way kick up to the right (4.1.2 (a)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front position lamp missing |1.1.1a| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect Beam pattern kicking up to right. (4.1.2 (c)) | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Inner Front Horn not working |1.7.3a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Front All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Motorcycle structure adversely modified |6.1.1b| | 1 |
| Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Front Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Front Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Indicator tell tale not operating correctly |1.5.2| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Lower Rear suspension bush has excessive free play shock to linkage |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Brake pedal is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear suspension component cracked |2.4.A.1a| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Direction indicator obscured |1.5.1a| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 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 |
| Nearside Rear 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 |
| Centre Rear Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Centre Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Footrest missing both pillion footrests missing |6.2.1a| | 1 |
| Rear Rear position lamp missing |1.1.1a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Rear Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Steering damper ineffective Also leaking |2.1.2d| | 1 |
| Nearside Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp not working On Front Brake Application |4.3.1 |a| |ii|| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Front Brake pipe likely to become detached or damaged insecure |1.1.11 |d| |ii|| | 1 |
| Offside Handlebar restricted in free movement from lock to lock bent handlebar |2.1.4 |c|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Stop lamp not working front brake control |4.3.1 |a| |ii|| | 1 |
| Fuel tank so insecure there is a risk of fire rear mounting bracket broken |6.1.3 |a| |ii|| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Centre Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Front Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Footrest insecure all |6.2.1a| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Nearside Front Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released rear brake |1.3.1e| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Master link is broken! |6.2.1h| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Rear Chain guard insecure |6.2.1c| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Offside Rear Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Offside Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Nearside Front Direction indicator obscured |1.5.1a| | 1 |
| Nearside Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Indicator tell tale not operating correctly |1.5.2| | 1 |
| Offside Rear Lower Stop lamp missing |1.3.3a| | 1 |
| Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Steering damper insecure |2.1.2d| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Nearside Rear Rear position lamp missing |1.1.1a| | 1 |