| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Registration plate issues | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Steering control handlebar movement restricted by taut cables tacho cable |2.1.2c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Steering control handlebar movement restricted by trapped cables clutch cable |2.1.2c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Offside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Front Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure L/H switch cube (6.1.1 (b) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |