| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Fuel system component insecure fuel tank insecure |7.2.1b| | 1 |
| Rear suspension bush has excessive free play rear swing arm bushes have excessive play. |2.4.A2a|i|| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear reflector on sidecar obscured |1.4.2b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Front Brake component modification adversely affecting braking performance |1.1.21 |d| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Front Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Drive chain sprocket carrier worn to excess cush drive rubbers |6.2.1e| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Registration plate issues | 1 |
| Rear wheel has a loose wheel bolt|s| wheel adjuster loose. |4.2.3a| | 1 |
| Rear suspension bush has excessive free play swinging arm pivot has excessive sideways movement. |2.4.A2a|i|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride chain link incorrect fitting. |6.2.1h| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Offside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Exhaust is leaking and excessively noisey Loose on front flange |7.1.1b| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Stop lamp not working Front |4.3.1 |a| |ii|| | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected Switchgear not secure (6.2.7 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Brake grabbing severely NOISY WHEN BRAKING |1.2.1 |c|| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock Right lock |2.1.4| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars Left lock |2.1.2b| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Steering headbearing has excessive free play notchy |2.2.2| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear suspension bearing has excessive free play swing arm |2.4.A2a|i|| | 1 |
| Rear Rear suspension bush has excessive free play swinging arm bearing |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Front Brake lever is so short that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling forks and yokes misaligned |2.4 |a|| | 1 |
| Rear Brake drum insecure (1.1.14 (a) (ii)) | 1 |
| Front Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected Buckled Wheel |5.2.2 |c| |ii|| | 1 |
| Nearside Front Handlebar deformed to the extent that steering is affected |2.2.1 |c| |ii|| | 1 |
| Offside Front Handlebar deformed to the extent that steering is affected |2.2.1 |c| |ii|| | 1 |
| Rear Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Centre Front Upper Headlamp aim headlamp damaged and function impaired headlight reflective damaged |melted| results in no beam pattern |1.2.3a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake lever excessively damaged |3.2.A1c| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear suspension bush has excessive free play trailing arm |2.4.A2a|i|| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system nut missing |7.1.1.c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies brake control |1.3.1a| | 1 |
| Rear Rear suspension bush excessively deteriorated swing arm bushes |2.4.A2a|i|| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Drive chain sprocket carrier worn to excess sprocket loose |6.2.1e| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil Badly corroded on shaft |2.4.A.1c| | 1 |
| Motorcycle structure cracked At gear lever |6.1.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies Rear brake pedal |1.3.1a| | 1 |
| Brake fluid reservoir leaking hydraulic fluid Sight glass broken |3.2.B1e| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Brake lever is so short that 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 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |