| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 52 |
| Headlamp aim out of alignment | 39 |
| Registration plate issues | 31 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 23 |
| Horn not working |1.7.3a| | 22 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 21 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 16 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Throttle operating incorrectly |6.2.1f| | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Drive chain excessively loose |6.2.1d| | 12 |
| Drive chain excessively tight |6.2.1d| | 11 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 10 |
| Rear Brake disc|s| cracked |3.2.A1g| | 10 |
| Front wheel bearings are excessively rough |2.3.5b| | 9 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 6 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 6 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 6 |
| Drive chain worn to excess |6.2.1e| | 6 |
| Brake hose excessively deteriorated | 6 |
| Front suspension has inadequate damping effect. |2.3.6c| | 6 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 5 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 5 |
| Rear Footrest missing |6.2.1a| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Rear Brake locking device missing |3.2.A1e| | 4 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 4 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 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 |
| Offside Rear Direction indicator not working |1.5.1c| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Direction indicators not working |1.5.1c| | 4 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 3 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Front Brake locking device missing |3.2.A1e| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Nearside Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front An item not tested |Manual| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 2 |
| Nearside Front Direction indicator missing |1.5.1a| | 2 |
| Offside Front Direction indicator missing |1.5.1a| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front wheel spindle securing nut|s| loose Pinch bolt |2.3.3a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Brake hose leaking (1.1.12 (c)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Brake pipe excessively corroded | 1 |
| Inner Rear Lower Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Front Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Registration plate lamp issues | 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 |
| Offside Lower Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear shock absorber insecurely mounted (2.4.A.3b) | 1 |
| Offside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies Rear Stop Light Not Working. |1.3.1a| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Drive chain excessively tight |6.2.1d| | 1 |
| Offside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Offside Front Brake hose fouling |3.2.B3b| | 1 |
| Offside Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Upper Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Centre Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake component is severely distorted |3.1.5| | 1 |
| Rear Brake component is severely distorted |3.1.5| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Centre Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Offside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Centre Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Centre Rear Rear position lamp insecure |1.1.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle sticks open (6.2.7 (a) (ii)) | 1 |
| Front Front suspension assembly component missing |2.3.1| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake disc|s| insecure |3.2.A1g| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 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 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no beam pattern |1.6.B.1| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 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 |
| Footrest insecure Both front |6.2.12 |a|| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Cable sticking. (6.2.7 (a) (ii)) | 1 |
| Nearside Front Brake hose leaking Caliper to hose union (1.1.12 (c)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Brake lever has insufficient reserve travel Lever action very spongey. (1.1.2 (a)) | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Exhaust has a major leak of exhaust gases corroded (6.1.2 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork (5.3.2 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle sticking (6.2.7 (a) (ii)) | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Nearside Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake disc|s| cracked |3.2.A1g| | 1 |
| Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| 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 |
| Rear Drive chain fouling another component |6.2.1d| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front control |1.3.1a| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |