| Most common failures | No# failures |
|---|
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Headlamp aim out of alignment | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Central Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Offside Position lamp switch insecure |1.1.4b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake back plate|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |