| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 12 |
| Steering headbearing has excessive free play |2.2.2| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Rear Wheel spoke excessively loose |4.2.1b| | 4 |
| Front Wheel spoke excessively loose |4.2.1b| | 4 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Wheel spoke missing |4.2.1b| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Brake hose excessively deteriorated | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Direction indicator not working |1.5.1c| | 1 |
| Direction indicator insecure |1.5.3b| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Inner Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Lower Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Inner Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Headlamp switch insecure |1.2.4| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Front Upper Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Upper Front mudguard insecure |2.3.7| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |