| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Drive chain fouling another component |6.2.1d| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 2 |
| Rear suspension bush has excessive free play swingarm |2.4.A2a|i|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Rear Lower Drive chain worn to excess |6.2.1e| | 1 |
| Centre Front Lower Footrest insecure |6.2.1a| | 1 |
| Rear Footrest missing both |6.2.1a| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking kickstart |6.1.1c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Motorcycle structure excessively damaged indicator |6.1.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies both front +rear |1.3.1a| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking mudgard |6.1.1c| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride wheel spindle |6.2.1h| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Rear Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Rear Brake lagging in operation |1.2.1 |d|| | 1 |
| Clutch lever positioned so it cannot be readily operated |6.2.7 |b|| | 1 |
| Direction indicators flashing less than 60 times a minute front and rear |1.5.1c| | 1 |
| Steering headbearing has excessive free play tight but loads of play |2.2.2| | 1 |
| Rear Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Footrest insecure split pins missing in both |6.2.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive chain excessively loose cush drive worn resulting in movement |6.2.1d| | 1 |
| Nearside Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Fork yoke deformed upper and lower out of line |2.1.1b| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Throttle operating incorrectly excessive free play (6.2.7 (a) (i)) | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Clutch lever positioned so it cannot be readily operated Lever mounting loose |6.2.7 |b|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| All direction indicators not working Flasher unit faulty |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Lower Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Nearside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 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 |
| Rear Stop lamp does not emit a steady light rear stop light switch |1.3.1b| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Rear Drive chain excessively tight |6.2.1d| | 1 |
| Rear Rear suspension component excessively corroded. swing arm |2.4.A.1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort pedal seized |3.3.A1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain sprocket carrier worn to excess cush drive rubbers excessively worn |6.2.1e| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen kicking up to the right (4.1.2 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling n/s( 0mm) and o/s( 25mm) (2.4 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the steering n/s (0mm) and o/s (25mm) (2.4 (a)) | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front brake switch - loose connector |1.3.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Direction indicator not working N/S/R indicator |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies Both brakes - defective switches |1.3.1a| | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Rear Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |