| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. (2.1.1c) | 1 |
| Headlamp insecure (1.2.3b) | 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 |
| Nearside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Front Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Front Brake disc(s) excessively worn (3.2.A1l) | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Rear Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride No split pin in rear axle locking nut (6.2.1h) | 1 |
| Rear Stop lamp remains on when the brake is released (1.3.1e) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride footrest clip missing |6.2.1h| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear wheel bearings have excessive free play sprocket bearing |2.4.A.2c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |