| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Registration plate issues | 3 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Horn not working |1.7.3a| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Inner Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Inner Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| 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 |
| Nearside Rear Drive chain worn to excess chain worn to excess and corroded |6.2.1e| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Centre Rear Drive chain excessively loose |6.2.1d| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |