| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 21 |
| Headlamp aim out of alignment | 7 |
| Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Registration plate issues | 6 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear wheel bearings have excessive free play Hub nut tightened |2.4.A.2c| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 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 |
| Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| All direction indicators adversely affected by the operation of another lamp indicator interferes with the stop lamps operation (4.4.3 (b)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Central Rear Lower Rear reflector missing missing rear reflector added as necessary (4.8.2 (a) (ii)) | 1 |
| Central Front Inner Horn not working HORN Not Working (7.7 (a) (ii)) | 1 |
| Rear reflector on motorcycle missing FITTED DURING TEST |1.4.1| | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Rear Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Front Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Central Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake lagging in operation |1.2.1 |d|| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp incorrect colour (4.1.4 (a)) | 1 |
| Rear Outer Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Brake indicates excessive fluctuation of brake effort front (1.2.1 (e)) | 1 |
| Steering headbearing has excessive free play Steering head bearings loose |2.2.2| | 1 |
| Front Shock absorber has a serious fluid leak L/H |5.3.2 |b|| | 1 |
| Position lamp not working Dip beam not working. (4.2.1 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Handlebar grip insecure to handlebar LEFT HAND GRIP LOOSE IN POSITION (2.2.1 (d) (ii)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |