| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 69 |
| Headlamp aim out of alignment | 60 |
| Headlamp aim beam image kick up to the offside |1.6| | 28 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 27 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 24 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 22 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 17 |
| Drive chain excessively loose |6.2.1d| | 15 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 15 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 13 |
| Steering headbearing has excessive free play |2.2.2| | 13 |
| Registration plate issues | 12 |
| Horn not working |1.7.3a| | 12 |
| Drive chain worn to excess |6.2.1e| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 10 |
| Handlebar deformed |2.1.1b| | 9 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 9 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 8 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 8 |
| Direction indicators not working |1.5.1c| | 8 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 8 |
| Rear Footrest missing |6.2.1a| | 8 |
| Nearside Steering lock stop ineffective |2.1.3| | 7 |
| 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| | 7 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 6 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 6 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Nearside Rear Footrest missing |6.2.1a| | 5 |
| Headlamp insecure |1.2.3b| | 5 |
| Rear Wheel spoke excessively loose |4.2.1b| | 5 |
| Fuel cap sealing washer missing |7.2.2c| | 4 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 4 |
| Offside Rear Direction indicator not working |1.5.1c| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Rear Direction indicators not working |1.5.1c| | 4 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 4 |
| Indicator switch defective |1.5.4| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 4 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 4 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Front Direction indicators not working |1.5.1c| | 3 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 3 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 3 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Steering lock stop ineffective |2.1.3| | 3 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Direction indicator not working |1.5.1c| | 3 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 3 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Nearside Direction indicators not working |1.5.1c| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Gradient brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.D1b| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Brake locking device missing |3.2.A1e| | 2 |
| Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Rear reflector on motorcycle obscured |1.4.1| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear position lamp insecure |1.1.1c| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 2 |
| Front Brake hose fouling |3.2.B3b| | 2 |
| Rear Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 2 |
| Rear position lamp damaged and function impaired |1.1.1b| | 2 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Wheel fractured significantly reducing the original strength |4.2.1a| | 2 |
| Offside Direction indicators not working |1.5.1c| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Front Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Inner Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Inner Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Offside Rear Brake back plate|s| insecure |3.2.A1j| | 1 |
| Nearside Front Horn is not a constant note |1.7.3c| | 1 |
| Offside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Centre Front Handlebar deformed |2.1.1b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Centre Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Centre Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Front Front suspension assembly component missing |2.3.1| | 1 |
| Centre Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Built up wheel has a bolt/s missing |4.2.1c| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| An item not tested |Manual| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Front Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake clevis joint insecure (1.1.15 (c)) | 1 |
| Front Handlebar grip insecure to handlebar switches loose (2.2.1 (d) (ii)) | 1 |
| Horn missing |1.7.1| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake cylinder severely damaged |3.2.B1b| | 1 |
| Offside Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Front Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Stop lamp not working not working on control brake 2 (rear brake) (4.3.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Suspension attachment bracket/mounting insecure swingarm nut (5.3.3 (a) (i)) | 1 |
| Rear Suspension component mounting modified so the suspension is likely to fail other components (5.3.3 (c) (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 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Fuel system component leaking |7.2.1a| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Nearside Front Steering linkage locking device missing pinch bolt missing (2.1.3 (d)) | 1 |
| Offside Front Steering linkage locking device ineffective pinch bolt loose (2.1.3 (d)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Forks in such a condition that steering control is adversely affected fork internal may have become unattached (2.2.2 (d) (ii)) | 1 |
| Front Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Front Upper Fairings insecure and likely to impede the steering head light cowl |2.1.2e| | 1 |
| Throttle operating incorrectly insecure and grip missing |6.2.1f| | 1 |
| Offside Handlebar handgrip missing |2.1.1c| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Brake hose damaged | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |