| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 21 |
| Rear reflector on motorcycle missing |1.4.1| | 15 |
| Drive chain worn to excess |6.2.1e| | 7 |
| Registration plate issues | 6 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Fuel system component insecure |7.2.1b| | 4 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Rear Footrest missing |6.2.1a| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Horn not working |1.7.3a| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Rear Wheel corroded significantly reducing the original strength |4.2.1a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Direction indicators not working |1.5.1c| | 2 |
| Centre Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| 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| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Front Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Steering lock stop ineffective |2.1.3| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Brake component has an inadequate repair |3.1.5| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Direction indicators not working all 4 indicators are not working correctly,all 4 flash at once. |1.5.1c| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Central Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Central Front Inner Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Central Front Exhaust has a major leak of exhaust gases exhaust is rusty/thin and has holes in front down pipe |6.1.2 |a|| | 1 |
| Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Rear wheel spindle |6.2.1h| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Front position lamp obscured more than 50% |1.1.1d| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Direction indicator obscured |1.5.1a| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside 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 |
| Centre Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Brake hose excessively twisted |3.2.B3a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 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 Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Rear Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 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 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |