| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Headlamp aim out of alignment | 12 |
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Horn not working |1.7.3a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Registration plate issues | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 3 |
| 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| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Horn missing |1.7.1| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Centre Front Headlamp insecure |1.2.3b| | 1 |
| Front 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 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Front Direction indicator obscured |1.5.1a| | 1 |
| Offside Front Direction indicator obscured |1.5.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain sprocket excessively loose rear sprocket bolts loose (6.1.7 (c) (i)) | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Horn missing |1.7.1| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| An item not tested |Manual| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Centre Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear suspension component misaligned |2.4.A.1a| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |