| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Registration plate issues | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| 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| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Riders seat insecure |6.2.1a| | 1 |
| Offside Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Handlebar deformed |2.1.1b| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |