| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 12 |
| Registration plate issues | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Drive chain excessively loose |6.2.1d| | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Registration plate lamp issues | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Headlamp insecure headlight is insecure (4.1.1 (c)) | 1 |
| Front Brake grabbing severely front brake is grabbing on application (1.2.1 (c)) | 1 |
| Front Headlamp not working on main beam main beam not working (4.1.1 (a) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn rear shock mounting worn excessively (5.3.4 (a) (i)) | 1 |
| Rear Shock absorber has negligible damping effect rear suspension unit has no damping (5.3.2 (b)) | 1 |
| Riders seat insecure seat is insecure (6.2.5 (a) (ii)) | 1 |
| Rear Position lamp not working rear light not working (4.2.1 (a)) | 1 |
| Rear Suspension component pin or bush excessively worn bottom suspension pins worn (5.3.4 (a) (i)) | 1 |
| Front Brake hose excessively twisted wrapped around forks and rubbing on wheel (1.1.12 (b) (ii)) | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Shock absorber has a serious fluid leak Both front (5.3.2 (b)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Rear Suspension arm corroded and seriously weakened (5.3.3 (b) (i)) | 1 |
| Horn missing |1.7.1| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp insecure Plastic mounting broken (4.1.1 (c)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen Kicks to right (4.1.2 (a)) | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Nearside Front Motorcycle structure cracked |6.1.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 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 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Floor brake test indicates a binding brake rear brake caliper binding |3.3.C2c| | 1 |
| Rear Footrest missing rear passenger footrests missing dual seat fitted |6.2.1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Rear Wheel more than one fixing loose |5.2.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Wheel spoke excessively bent (5.2.2 (d)) | 1 |
| Rear Wheel spoke cracked (5.2.2 (d)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp aim not tested due to machine cutting out when handlebars turned to the forward position (4.1.2 (b)) | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Suspension component attachment bracket/mounting likely to fail linkage bushes seizing up |5.3.3 |b| |ii|| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Handlebar deformed |2.1.1b| | 1 |