| Most common failures | No# failures |
|---|
| Registration plate issues | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Headlamp aim out of alignment | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded calliper bind |3.2.A1h| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 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 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Drive chain excessively tight |6.2.1d| | 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 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Registration plate lamp issues | 1 |
| Horn sound not in accordance with requirements not loud enough |7.7 |c|| | 1 |
| Rear Suspension attachment bracket/mounting insecure swing arm bearings worn |5.3.3 |a| |i|| | 1 |
| Rear Lower Suspension component pin or bush excessively worn lower suspension bushes worn to excess |5.3.4 |a| |i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies front control |1.3.1a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Drive chain excessively loose missing |6.2.1d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Front Steering lock stop missing |2.1.3| | 1 |
| Offside Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |