| Most common failures | No# failures |
|---|
| Registration plate issues | 10 |
| Headlamp aim out of alignment | 7 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Handlebar mounting clamp loose |2.1.1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Wheel spoke excessively loose |4.2.1b| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 3 |
| Direction indicators not working |1.5.1c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Direction indicator missing |1.5.1a| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Rear Stop lamp flickers when tapped lightly by hand |1.3.1d| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Front Lower Steering linkage has excessive free play |2.2.2| | 1 |
| Rear Brake back plate|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Suspension arm attachment bracket/mounting insecure swing arm mounting loose (5.3.3 (a) (i)) | 1 |
| Rear Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front All position lamps do not illuminate immediately when switched on high beam |1.1.3a| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Front Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front Wheel fixing loose |single fixing| locking pin missing |5.2.1 |a| |ii|| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front An item not tested |Manual| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear suspension has an inadequate repair of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Offside Rear Upper Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Indicator switch inoperative |4.4.2 |a| |ii|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Rear Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Steering operation impeded by a leg shield no working lock stops |2.1.4 |e|| | 1 |
| Brake pedal pivot has excessive free play modified mounting mount is bending under heavy braking |1.1.1 |b|| | 1 |
| Rear Drive chain sprocket so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Drive chain sprocket worn to excess cush drive excessive play |6.1.7 |c| |i|| | 1 |
| Brake lever has insufficient reserve travel lower cable is close to bottoming out when brake is fully applied. |1.1.2 |a|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Front Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Front Suspension arm attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced frame is holed |6.1.1 |c| |i|| | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced front axle missing split pin |6.1.1 |b| |ii|| | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced rear axle missing split pin |6.1.1 |b| |ii|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Nearside Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Brake locking device missing |3.2.A1e| | 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 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Centre Rear Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Rear Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Offside Rear Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Brake pedal so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Rear Brake component insecure ARM (1.1.21 (c)) | 1 |
| Rear Brake pivot excessively worn (1.1.15 (b)) | 1 |
| Front Brake cable insecure (1.1.15 (c)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure SWINGING ARM (6.1.1 (b) (i)) | 1 |
| Central Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Central Front Horn missing |1.7.1| | 1 |
| Brake component insecure front brake arm retaining bolt (1.1.21 (c)) | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |