| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Registration plate issues | 3 |
| Horn not working |1.7.3a| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Brake locking device missing |3.2.A1e| | 2 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride rear sprocket |6.2.1h| | 1 |
| Front wheel spindle securing nut locking device insecure wheel hub |2.3.3a| | 1 |
| Front Brake lever attachment screws loose nut inscure |3.1.2b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Handlebar handgrip missing |2.1.1c| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Brake lever attachment screws missing |3.1.2b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Rear Direction indicator insecure Tightened loose nut |1.5.3b| | 1 |