| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 9 |
| Rear Wheel spoke excessively loose |4.2.1b| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Registration plate issues | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Inner Front Upper Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Clutch lever positioned so it cannot be readily operated. excessivly insecure |6.2.1g| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Offside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Outer Front Direction indicators not working |1.5.1c| | 1 |
| Outer Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake lining|s| less than 1.0 mm thick |1.1.13 |a|| | 1 |
| Nearside Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Offside Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Front Steering linkage ball joint has excessive play (2.1.3 (b) (i)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Brake back plate|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Central Front Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Centre Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake lever insecure O/S Brake lever. |1.1.2 |e| |i|| | 1 |
| Drive chain sprocket excessively loose All 4 nuts insecure & lock plates not functioning as intended. (6.1.7 (c) (i)) | 1 |
| Brake pedal mounting insecure Linkage poorly secured using cable tie instead of split pin |3.1.2a| | 1 |
| Centre Front Lower Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Outer Rear Lower Drive chain worn to excess |6.2.1e| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Front Headlamp missing |1.2.3a| | 1 |
| Offside Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Inner Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |