| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Front Brake excessively binding (1.2.1 (f)) | 10 |
| Stop lamp remains on when the brakes are released | 10 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Horn not working (7.7 (a)) | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 5 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 4 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Horn not working |1.7.3a| | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Registration plate issues | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Brake component insecure Missing locking nyloc nut (1.1.21 (c)) | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake master cylinder has a seized master cylinder pivot. |3.2.B5| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Stop lamp not working when front brake is applied (4.3.1 (a) (ii)) | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Revs rise on full lock (6.2.7 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Stop lamp not working not working when rear brake applied |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Brake lever pivot excessively tight on brake drum (1.1.1 (a)) | 1 |
| Rear Steering linkage locking device missing rear brake lower arm fitting (2.1.3 (d)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp not working Brake controller 2 (4.3.1 (a) (ii)) | 1 |
| Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Brake performance not tested FRONT BRAEK SEIZED (1.2.1 (g)) | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Brake pedal cannot be released smoothly BINDING IN CABLE |3.1.3d| | 1 |
| Rear Roller brake test indicates a binding brake BINDING DUE TO CABLE |3.3.A1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies NOT WORKING FROM PEDAL |1.3.1a| | 1 |
| Rear Drive chain worn to excess Excess wear in teeth and in cushion drive |6.2.1e| | 1 |
| Nearside Rear Footrest insecure WORN IN PIVOT AND NOT USEABLE |6.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 1 |
| Offside Front Wheel spindle loose spacer (5.2.1 (c) (i)) | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment reaction bracket loose |3.2.A1i| | 1 |
| Brake disc significantly and obviously worn Front |1.1.14 |a| |i|| | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies lever |1.3.1a| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Drive chain sprocket carrier worn to excess crush drive rubbers are badly worn |6.2.1e| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake pedal is inoperative stick`s on when applied |3.1.3c| | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Brake caliper has no reserve travel and braking performance affected Piston seized |1.1.16 |e| |ii|| | 1 |
| Front Stop lamp not working brake light switch |4.3.1 |a| |ii|| | 1 |
| Drive chain worn to excess chain and sprockets |6.1.7 |c| |i|| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake rod insecure torque arm (1.1.15 (c)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Lower Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Nearside Rear Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Rear Brake drum significantly and obviously worn Excessive noise when rear brake applied . (1.1.14 (a) (i)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Drive chain sprocket worn to excess CUSH DRIVE (6.1.7 (c) (i)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |