| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Registration plate issues | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Brake cable insecure (1.1.15 (c)) | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Inner Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Offside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |