| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Registration plate issues | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Front Wheel spoke excessively loose |4.2.1b| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Horn missing |1.7.1| | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| 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| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Direction indicator missing |1.5.1a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Fuel system component leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure sprocket retaining tab washer not fitted correctly (6.1.1 (b) (i)) | 1 |
| Wheel spoke excessively loose |4.2.1b| | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Offside Rear Footrest missing Stuck upright (6.2.12 (a)) | 1 |
| Nearside Front Upper Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |