| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Registration plate issues | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Steering headbearing has excessive free play |2.2.2| | 11 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Nearside Rear Footrest missing |6.2.1a| | 8 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Riders seat insecure |6.2.1a| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 6 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Offside Rear Footrest missing |6.2.1a| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Horn not working |1.7.3a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Offside Handlebar deformed |2.1.1b| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear Footrest missing |6.2.1a| | 4 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 4 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 2 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 2 |
| Rear Footrest insecure |6.2.1a| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Nearside Rear All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Rear Brake hose porous (1.1.12 (e)) | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake caliper inadequately mounted sleeve missing (1.1.16 (c) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain link |6.2.1h| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Rear suspension bush has excessive free play swing arm |2.4.A2a|i|| | 1 |
| Front Headlamp incorrect colour Main beam |4.1.4 |a|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride sprocket |6.2.1h| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Steering control handlebar movement restricted by cables caught on a projection brake flexi catches fairing on RH lock |2.1.2c| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Rear Brake component is severely distorted brake master cylinder pushrod bent and insecure |3.1.5| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected cable loose in switch and engine runs fast. (6.2.7 (a) (ii)) | 1 |
| Rear suspension bearing has excessive free play swing arm |2.4.A2a|i|| | 1 |
| Rear Rear position lamp obscured more than 50% numberplate light |1.1.1d| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Brake hose excessively deteriorated | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Rear reflector missing REAR REFLECTOR MISSING (4.8.2 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn SWING ARM BEARING EXCESSIVELY WORN (5.3.4 (a) (i)) | 1 |
| Fuel cap ineffective FUEL CAP NOT SEATING CORRECTLY ON TANK (6.1.3 (b) (i)) | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake caliper insecure both mounting bolt locking tabs (1.1.16 (c) (i)) | 1 |
| Rear suspension bush has excessive free play swingarm |2.4.A2a|i|| | 1 |
| Rear suspension bush has excessive free play swingarm bushes |2.4.A2a|i|| | 1 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Central Front Handlebar fouling on the fuel tank or bodywork on full lock bars touching both sides of tank |2.1.4 |b|| | 1 |
| Offside Rear Brake caliper inadequately mounted |1.1.16 |c| |i|| | 1 |
| Rear Outer Footrest missing both rear foot pegs missing |6.2.12 |a|| | 1 |
| Nearside Rear Drive chain sprocket excessively loose |6.1.7 |c| |i|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Rear Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear suspension bearing has excessive free play swingarm |2.4.A2a|i|| | 1 |
| Nearside Front Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Horn missing |1.7.1| | 1 |
| Front Direction indicator insecure |1.5.3b| | 1 |
| Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Front Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear suspension bearing has excessive free play swinging arm |2.4.A2a|i|| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front suspension fouling which affects the movement of the front suspension. brake flexi hose clamp fouling on shock absorber |2.3.6a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Motorcycle structure adversely modified |6.1.1b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear reflector missing new one fitted (4.8.2 (a) (ii)) | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Suspension arm pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Throttle operating incorrectly insecure |6.2.1f| | 1 |
| Front position lamp does not illuminate immediately when switched on high beam |1.1.3a| | 1 |
| Seat insecure Missing |6.2.1a| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Riders seat insecure No mounting bolt. |6.2.1a| | 1 |
| Throttle operating incorrectly Grip and handlebar unit insecure. |6.2.1f| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies Does not illuminate when rear brake applied. |1.3.1a| | 1 |
| Front Brake caliper inadequately mounted locking tabs "open" (1.1.16 (c) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected revs increase when steering operated (6.2.7 (a) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Direction indicator adversely affected by the operation of another lamp rear side light (4.4.3 (b)) | 1 |
| Stop lamp not working hand lever (4.3.1 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Nearside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |