| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Registration plate issues | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Nearside 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 |
| Offside 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 |
| Horn not working |1.7.3a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Front Front position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Front Front position lamp|s| missing |1.1.A.3a| | 1 |
| Nearside Stop lamp missing |1.2.1a| | 1 |
| Offside Stop lamp missing |1.2.1a| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Nearside Rear position lamp|s| missing |1.1.A.3a| | 1 |
| Offside Rear position lamp|s| missing |1.1.A.3a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Brake pedal insecure |3.1.2a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp insecure |1.7.3| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Riders seat insecure |6.2.1a| | 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 |
| Nearside Front Shock absorbers has a serious fluid leak | 1 |
| Stop lamp(s) not working from rear brakes (4.3.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Nearside Front Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |