| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Drive chain excessively loose |6.2.1d| | 11 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 8 |
| Headlamp insecure |1.2.3b| | 6 |
| Horn not working |1.7.3a| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Nearside Rear Footrest missing |6.2.1a| | 5 |
| Offside Rear Footrest missing |6.2.1a| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 5 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Registration plate issues | 4 |
| Offside Front Footrest insecure |6.2.1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Nearside Handlebar deformed |2.1.1b| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Fuel system component insecure |7.2.1b| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Offside Handlebar deformed |2.1.1b| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Registration plate lamp issues | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Footrest missing Both rear |6.2.1a| | 1 |
| Footrest insecure Both front circlips missing |6.2.1a| | 1 |
| Rear position lamp obscured more than 50% Only 33% working |1.1.1d| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicators not working machine does not run to work winkers |1.5.1c| | 1 |
| Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside 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 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Shock absorber has a serious fluid leak R/H (5.3.2 (b)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected sticks open (6.2.7 (a) (ii)) | 1 |
| Throttle operating incorrectly Assembly loose on handle bar. (6.2.7 (a) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock Brake lever hits on fairing. (2.1.4 (b)) | 1 |
| Nearside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Shock absorber has a serious fluid leak Both fork seals leaking. (5.3.2 (b)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear suspension bush has excessive free play mono shock upper |2.4.A2a|i|| | 1 |
| Headlamp switch faulty High beam indicator is on on dipped beam |1.2.4| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Handlebar fractured |2.1.1b| | 1 |
| Fairings insecure and likely to impede the steering front fairing mount insecure |2.1.2e| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear Footrest missing both |6.2.1a| | 1 |
| Steering lock stop ineffective on left lock |2.1.3| | 1 |
| Rear suspension bush has excessive free play swing arm |2.4.A2a|i|| | 1 |
| Front Brake lever has inadequate reserve travel can not be pulled in comes to a stop on throttle |3.1.3b| | 1 |
| Central Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear position lamp obscured more than 50% 70 % working |1.1.1d| | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel system component leaking leaks from behind fairings (6.1.3 (b) (i)) | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies Lever switch |1.3.1a| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Upper Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Offside Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Front position lamp missing |1.1.1a| | 1 |
| Nearside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Stop lamp not working rear brake (4.3.1 (a) (ii)) | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Stop lamp with a multiple light source more than 1/2 not functioning not working |4.3.1 |a| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear Direction indicator obscured |1.5.1a| | 1 |
| Offside Headlamp insecure |1.2.3b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Central Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Central Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Central Rear Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Central Front Fork yoke excessively deformed (2.2.2 (d) (i)) | 1 |
| Offside Front Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |