| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 30 |
| Rear reflector on motorcycle missing |1.4.1| | 16 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 16 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Registration plate issues | 8 |
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 6 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Horn not working |1.7.3a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Front Brake disc|s| cracked |3.2.A1g| | 3 |
| Front Wheel spoke excessively loose |4.2.1b| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 2 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 2 |
| 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| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear reflector on sidecar missing |1.4.1| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Inner Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Nearside Front Lower Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Centre Front Riders seat insecure not clipped into lock |6.2.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| An item not tested |Manual| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected wrongly assembled |6.2.7 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play Free play |2.2.2 |f| |i|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Front Fuel system component leaking |7.2.1a| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Lower Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Offside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Rear Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Nearside Fuel hose leaking |7.2.1a| | 1 |
| Offside Fuel hose leaking |7.2.1a| | 1 |
| Stop lamp not working FR AND REAR BRAKES |4.3.1 |a| |ii|| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Offside Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Nearside Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Rear Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn missing |1.7.1| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake master cylinder severely damaged |3.2.B1b| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Inner Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Inner Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Rear Lower Rear suspension bush has excessive free play shock absorber. |2.4.A2a|i|| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front Wheel excessively corroded (5.2.2 (c) (i)) | 1 |
| Nearside Front Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Rear Brake disc(s) securing bolt(s) missing (3.2.A1g) | 1 |
| Steering movement excessively notchy with the wheel raised (2.2.1b) | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Direction indicator missing O/S REAR (4.4.1 (a) (ii)) | 1 |
| Offside Front Wheel fixing missing (single fixing) wheel nut locking device missing (5.2.1 (a) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (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 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected in correct throttle rooting making engine rev when steering turned (6.2.7 (a) (ii)) | 1 |
| Front Steering operation linkage fouling when handlebars turned from lock to lock switch gear cable (2.1.4 (a)) | 1 |
| Central Front Lower Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Central Front Lower Brake excessively binding (1.2.1 (f)) | 1 |
| Central Rear Lower Wheel corroded to the extent that the wheel could break up (5.2.2 (c) (ii)) | 1 |
| Offside Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Upper Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Rear Brake caliper inadequately mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |