| Most common failures | No# failures |
|---|
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp aim out of alignment | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Brake hose excessively deteriorated | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 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 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Stop lamp insecure |1.3.3b| | 1 |
| Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Exhaust is leaking and excessively noisey down pipe to end can |7.1.1b| | 1 |
| Nearside Front Footrest insecure rubber |6.2.1a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear suspension bearing excessively deteriorated swingarm bearing to much play suspect frame worn |2.4A.2a|i|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Decelerometer brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure mudguard (6.1.1 (b) (i)) | 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 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Chain guard insecure (6.1.7 (i)) | 1 |