| Most common failures | No# failures |
|---|
| Registration plate issues | 14 |
| Headlamp aim out of alignment | 10 |
| Horn not working |1.7.3a| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Nearside Footrest insecure |6.2.1a| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Brake lever attachment screws missing |3.1.2b| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Offside Motorcycle structure cracked |6.1.1a| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 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 |
| Brake pedal insecure |3.1.2a| | 1 |
| Brake locking device missing rear brake rod pin |3.2.A1e| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear shock absorber has inadequate damping effect. shocks upside down |2.4.A.3b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Horn missing |1.7.1| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Centre Rear Stop lamp missing |1.3.3a| | 1 |
| Centre Front Horn missing |1.7.1| | 1 |
| Offside Outer Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Offside Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on Dipped, main and side light not working |1.1.3a| | 1 |
| Rear Stop lamp emits other than a steady red light Rear brake light switch not working |1.3.1b| | 1 |
| Fuel system component leaking carb |7.2.1a| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Direction indicators not working none working |1.5.1c| | 1 |
| Nearside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake drum|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Central Front Riders seat insecure catch loose |6.2.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp indicators affect rear lamp |1.1.3b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear reflector on motorcycle missing red reflector missing. |2 x amber items fitted| |1.4.1| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| An item not tested |Manual| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 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 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |