| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 31 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 26 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 20 |
| Registration plate issues | 17 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 13 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 11 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 8 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 8 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Drive chain worn to excess |6.2.1e| | 7 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 6 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 5 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Nearside Front Direction indicators not working |1.5.1c| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 3 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 3 |
| Front Brake disc|s| insecure |3.2.A1g| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Registration plate lamp issues | 2 |
| Centre Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Brake locking device missing |3.2.A1e| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Brake performance not tested |3.3| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Brake performance not tested |3.3| | 2 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Offside Rear Brake locking device missing |3.2.A1e| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Drive chain worn to excess |6.2.1e| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Drive chain excessively tight |6.2.1d| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Fuel system component leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Centre Rear Lower Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Nearside Front Front suspension assembly component loose |2.3.1| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Front Brake locking device missing |3.2.A1e| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Centre Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Front Upper Brake hose excessively kinked |3.2.B3a| | 1 |
| Central Lower Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Front sprocket nut loose |6.2.1h| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Central Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Inner Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Front Inner Brake excessively binding |1.2.1 |f|| | 1 |
| Central Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Nearside Front Upper Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake hose excessively twisted |1.1.12 |b| |ii|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear 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| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Rear Drive chain fouling another component |6.2.1d| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear An item not tested |Manual| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Centre Front Upper Horn not working |1.7.3a| | 1 |
| Centre Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Lower Brake locking device missing |3.2.A1e| | 1 |
| Front Headlamp aim not tested aim obviously incorrect ct (4.1.2 (b)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake master cylinder has a seized master cylinder pivot. |3.2.B5| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Upper Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Upper An item not tested |Manual| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Centre Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil seal failed |2.3.3| | 1 |
| Rear Brake cylinder severely corroded |3.2.B1b| | 1 |
| Nearside Front Brake cylinder severely corroded |3.2.B1b| | 1 |
| Offside Front Brake cylinder severely corroded |3.2.B1b| | 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 |
| Chain guard insecure |6.1.7 |i|| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| 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| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Front suspension assembly component cracked |2.3.1| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Position lamp not working (4.2.1 (a)) | 1 |
| Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Front Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front shock absorber seal failed and leaking oil Left Fork Leg |2.3.3| | 1 |
| Front shock absorber seal failed and leaking oil Right Fork Leg |2.3.3| | 1 |
| Headlamp incorrect colour Side Light Blue |1.2.1| | 1 |
| Offside Front Headlamp switch faulty |1.2.4| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Centre Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Inner Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake locking device missing reaction bracket |3.2.A1e| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Centre Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Fuel tank leaking |7.2.1a| | 1 |
| Front Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |