| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Central Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Central Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Front Motorcycle structure adversely modified |6.1.1b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 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 Exhaust mounting does not fully support the exhaust system rear silencer mount bolts loose |7.1.1.c| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system rear silencer mount nuts loose |7.1.1.c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |