| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 30 |
| Headlamp aim out of alignment | 23 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 18 |
| Registration plate issues | 16 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 11 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Front position lamp incorrect colour |1.1.2a| | 5 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| An item not tested |Manual| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Seat insecure |6.2.1a| | 2 |
| Footrest missing |6.2.1a| | 2 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Brake hose excessively deteriorated | 2 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Front Brake component is fractured |3.1.5| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Brake pedal cracked |3.1.2c| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Headlamp insecure |1.2.3b| | 1 |
| Front Front position lamp missing |1.1.1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Upper Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Inner Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Stop lamp not working not illuminating when rear brake is applied |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside 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 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Nearside Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Steering linkage locking device missing lock to lock stops missing handlebars hitting clocks |2.1.3 |d|| | 1 |
| Forks in such a condition that steering control is adversely affected forks hitting clock mount |2.2.2 |d| |ii|| | 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 |
| Position lamp showing white light to the rear lens missing no. plate light showing |4.2.3 |a| |ii|| | 1 |
| Drive chain horseshoe locking device likely to become detached not beat over securing chain link |6.1.7 |j| |ii|| | 1 |
| Centre Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Outer Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Outer Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Inner Front Front wheel insecure |4.2.3b| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Front wheel insecure |4.2.3b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 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 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Upper Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake pedal cracked |3.1.2c| | 1 |
| Offside Front Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |