| Most common failures | No# failures |
|---|
| Steering headbearing has excessive free play |2.2.2| | 9 |
| Registration plate issues | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp aim out of alignment | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Centre Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Direction indicator obscured |1.5.1a| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Throttle operating incorrectly sticking |6.2.7 |a| |i|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Direction indicators flashing more than 120 times a minute |1.4.A.2g| | 1 |
| Parking brake lever, pawl mechanism pivots or their associated mountings are insecure |3.1.4b| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Parking brake efficiency below requirements |3.7.B.7| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Offside Rear Mechanical brake component locking device missing hub nut locking device missing |3.5.1l| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear wheel bearings have excessive free play Sprocket bearing has excessive play |2.4.A.2c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Brake pedal mounting insecure Pivot siezed; twisting on pedal mounting |3.1.2a| | 1 |
| Nearside Footrest insecure weld cracked away from frame |6.2.1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Front Exhaust mounting missing |7.1.1c| | 1 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Lower Rear suspension bush has excessive free play shock linkage bush |2.4.A2a|i|| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp does not work when position lamps are on (4.3.3 (b)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 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 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Upper Fork yoke insecure bolt loose (2.2.2 (d) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |