| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Headlamp aim beam image kick up to the offside |1.6| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Registration plate issues | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 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 Front Position lamp switch insecure |1.1.4b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Brake hose damaged | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Headlamp aim beam image kick up to the offside masked |1.6| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |