| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 21 |
| Registration plate issues | 9 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Throttle operating incorrectly sticking on |6.2.1f| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Footrest missing both passenger footrest |6.2.1a| | 1 |
| Nearside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain split link incorrectly fitted |6.2.1h| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Lower Shock absorber has a serious fluid leak (5.3.2 (b)) | 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 Brake fluid reservoir fluid not visible |1.1.10 |d| |iii|| | 1 |
| Rear Brake fluid reservoir fluid not visible |1.1.10 |d| |iii|| | 1 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Brake caliper has no reserve travel and braking performance affected |1.1.16 |e| |ii|| | 1 |
| Rear Brake caliper has no reserve travel and braking performance affected |1.1.16 |e| |ii|| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Drive chain sprocket so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Roller brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected top nut6 loose (2.2.2 (d) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Direction indicator not working all |1.5.1c| | 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 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Horseshoe clip fitted backwards |6.2.1h| | 1 |
| Footrest missing Both passenger footrest missing |6.2.1a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Footrest missing Pillion. |6.2.1a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Exhaust mounting missing |7.1.1c| | 1 |
| Central Front Upper Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Headlamp incorrect colour |4.1.4 |a|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies Lever |1.3.1a| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 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 Position lamp not working (4.2.1 (a)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Wheel fixing loose |multiple fixings| |5.2.1 |a| |i|| | 1 |
| Stop lamp switch with a delay in operation Rear brake control (4.3.2 (a) (ii)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition R/H Tail Pipe/Silencer Missing (8.1.1 (a)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Central Front Steering headbearing has excessive free play Drop,grease and re set |2.2.2| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal leaking (5.3.2 (b)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies control |1.3.1a| | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen no pattern (4.1.2 (a)) | 1 |
| Suspension arm attachment bracket/mounting insecure swinging arm main pivot bolt (5.3.3 (a) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Chain clip incorrectly fitted |6.2.1h| | 1 |
| Rear Brake excessively binding rear brake master cylinder seized (1.2.1 (f)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |