| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 37 |
| Headlamp aim out of alignment | 22 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 20 |
| Registration plate issues | 12 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 9 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 9 |
| Drive chain worn to excess |6.2.1e| | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Horn not working |1.7.3a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Fuel cap sealing washer missing |7.2.2c| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| 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| | 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 |
| Headlamp switch faulty |1.2.4| | 3 |
| Drive chain fouling another component |6.2.1d| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Registration plate lamp issues | 2 |
| Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front suspension assembly component loose |2.3.1| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 1 |
| Stop lamp not working Less than half of tail light illuminates in incorrect colour (4.3.1 (a) (ii)) | 1 |
| Rear Lower Suspension component has excessive wear or free play Swingarm linkage bearings/bushes (5.3.3 (d)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn Knuckle (5.3.4 (a) (i)) | 1 |
| Front Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Rear Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Brake component worn and seriously reduced in strength brake lever |3.2.A1| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride d clip wrong way |6.2.1h| | 1 |
| Rear Brake locking device insecure brake lock tabs |3.2.A1e| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Braking system does not have an approriate system/s fitted according to its age |3.1.1| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Direction indicator insecure |1.5.3b| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Brake master cylinder has an excessively worn master cylinder pivot. |3.2.B5| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Central Rear Lower Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Central Rear Lower Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Nearside Front Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Stop lamp not working front and rear |4.3.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Stop lamp not working switch missing (4.3.1 (a) (ii)) | 1 |
| Front Wheel has bolts/rivets missing or loose to the extent that control of the motorcycle is likely to be adversely affected spokes so loose wheel rim moves from side to side (5.2.2 (e) (ii)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Wheel spoke excessively loose slight movement in wheel rim (5.2.2 (d)) | 1 |
| Rear Brake pedal has insufficient reserve travel brake spongy (1.1.2 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Centre Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride headstock steering lock plate missing allowing forks to strike fuel tank |6.2.1h| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Centre Front Upper Fuel cap sealing washer missing |7.2.2c| | 1 |
| Nearside Front Clutch lever shortened so it cannot be readily operated. short incorrect lever restricts effective use of clutch |6.2.1g| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Suspension arm pin or bush excessively worn link arm (5.3.4 (a) (i)) | 1 |
| Direction indicator missing All |1.5.1a| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| An item not tested |Manual| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Upper Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Brake master cylinder has a seized master cylinder pivot. Seized and doesn`t return properly |3.2.B5| | 1 |
| Rear Brake master cylinder has a seized master cylinder pivot. |3.2.B5| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Brake hose fouling |3.2.B3b| | 1 |
| Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Front wheel bearings have excessive free play front |2.3.5b| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride bolt missing from rear sprocket |6.2.1h| | 1 |
| Offside Rear Brake disc|s| excessively scored rear disc is worn and badly scored |3.2.A1l| | 1 |
| Rear Rear reflector on motorcycle missing no rear reflector |1.4.1| | 1 |
| Centre Rear Stop lamp damaged and function impaired rear brake stop light not working |1.3.3a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil left hand fork leg seal leaking |2.3.3| | 1 |
| Riders seat insecure riders seat fixing broken |6.2.1a| | 1 |
| Headlamp at least one does not illuminate on dipped beam dip beam not working |1.2.2a|i|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Drive chain horseshoe locking device incorrectly fitted fitted round wrong way |6.1.7 |j| |i|| | 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 |
| Offside Rear Lower Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Centre Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Stop lamp does not illuminate immediately a brake applies when front brake is applied |1.3.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 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 Drive chain fouling another component |6.2.1d| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |