| Most common failures | No# failures |
|---|
| Headlamp aim beam image kick up to the offside |1.6| | 27 |
| Headlamp aim out of alignment | 15 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Registration plate issues | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 5 |
| Horn not working |1.7.3a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp incorrect colour |1.2.1| | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake pedal attachment screws loose |3.1.2b| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Front Front suspension assembly has an insecure fork brace |2.3.4d| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Suspension arm attachment bracket/mounting insecure play in rear swing arm mounting (5.3.3 (a) (i)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Upper Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Footrest insecure (6.2.12 (a)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Central Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle sticking (6.2.7 (a) (ii)) | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Front Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Offside Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Centre Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Centre Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 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 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Motorcycle structure excessively distorted upper swingarm shock mounting point |6.1.1a| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear suspension bearing has excessive free play swingarm |2.4.A2a|i|| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Rear suspension has a fracture of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Brake lever excessively damaged |3.2.A1c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Offside Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Offside Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Brake caliper insecure Slider mount bolt loose (1.1.16 (c) (i)) | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Headlamp insecure |1.2.3b| | 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 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Front Steering linkage has excessive free play |2.2.2| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| An item not tested |Manual| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front An item not tested |Manual| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Valve stem seriously damaged Valve stem perished (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged Valve stem perished (5.2.3 (j)) | 1 |
| Front Footrest insecure N/S clevis pin retainer missing (6.2.12 (a)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake pedal insecure Clevis pin clip missing (1.1.2 (e) (i)) | 1 |