| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Headlamp aim out of alignment | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Horn not working |1.7.3a| | 5 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Registration plate issues | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Wheel spoke excessively loose |4.2.1b| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Direction indicator obscured |1.5.1a| | 1 |
| Brake pedal insecure |3.1.2a| | 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 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Handlebar grip missing (2.2.1 (d) (i)) | 1 |
| Stop lamp not working wiring (4.3.1 (a) (ii)) | 1 |
| Position lamp not working wiring (4.2.1 (a)) | 1 |
| Nearside Rear Direction indicator not working wiring (4.4.1 (a) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Exhaust has a major leak of exhaust gases front and rear (6.1.2 (a)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Fuel pipe insecure (6.1.3 (a) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |