| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 24 |
| Headlamp aim out of alignment | 19 |
| Registration plate issues | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Horn not working |1.7.3a| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp does not illuminate immediately a brake applies not working on front control |1.3.1a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen Standard bulb fitted |4.1.2 |a|| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Central Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Direction indicator incorrect colour showing whit light |1.5.1b| | 1 |
| Rear Direction indicator incorrect colour showing white light |1.5.1b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Offside Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 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 |
| Front Stop lamp not working fit a new brake switch |4.3.1 |a| |ii|| | 1 |
| Upper Steering headbearing in such a condition that steering control is adversely affected Notchy with wheel raised. |2.2.2 |f| |ii|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Headlamp lens seriously defective |4.1.1 |b| |ii|| | 1 |
| Stop lamp not working Forward Control |4.3.1 |a| |ii|| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Upper Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Lower Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Exhaust silencer insecure |8.1.1 |b| |i|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Exhaust system insecure exhaust clamp missing |6.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Upper Brake lever has abnormal movement of levers indicating excessive wear or maladjustment Lack of reserve travel at lever |1.1.15 |f|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Rear suspension bearing has excessive free play swingarm excessive freeplay |2.4.A2a|i|| | 1 |
| Rear Brake cylinder insecurely mounted Bolt snapped in brake cylinder |3.2.B1a| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |