| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 53 |
| Registration plate issues | 38 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 19 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 16 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 10 |
| Headlamp aim beam image kick up to the offside |1.6| | 9 |
| 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| | 8 |
| Drive chain excessively loose |6.2.1d| | 7 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| 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)) | 4 |
| Registration plate lamp issues | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 4 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Front Brake grabbing severely |1.2.1 |c|| | 2 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no pattern |4.1.2 |a|| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Stop lamp not working rear control (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly Throttle not closing on full right hand lock (6.2.7 (a) (i)) | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies when foot pedal pressed |1.3.1a| | 1 |
| Stop lamp not working when foot pedal applied (4.3.1 (a) (ii)) | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake pivot has restricted free movement |1.1.15 |e|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp not working From rear brake control (4.3.1 (a) (ii)) | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced Both rear lower parts holed at foot pegs (6.1.1 (c) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Central Rear All position lamps not working (4.2.1 (a)) | 1 |
| Nearside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Gradient brake test No brake control achieves an efficiency of 30%. |3.3.D1a| | 1 |
| Gradient brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.D1b| | 1 |
| Gradient brake test Neither brake control achieves an efficiency of 25% |3.3.D1b| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator obscured |1.5.1a| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Headlamp aim projected beam image obviously incorrect high beam lower than main beam (4.1.2 (c)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Rear wheel spindle securing nut locking device missing spindle pin missing |2.4.A.2b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Throttle operating incorrectly sticking on full lock (6.2.7 (a) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Brake cylinder severely corroded |3.2.B1b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Offside Front suspension assembly has an insecure fork brace |2.3.4d| | 1 |
| All direction indicators not working all indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Central Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Position lamp not working side car |4.2.1 |a|| | 1 |
| Rear Stop lamp not working side car |4.3.1 |a| |ii|| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Rear Suspension component modified so the suspension is inoperative Seized up |5.3.3 |c| |ii|| | 1 |
| Handlebar so insecure it is likely to become detached Loose |2.2.1 |b| |ii|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Centre Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Centre Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Stop lamp not working Front brake switch (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working Rear brake switch (4.3.1 (a) (ii)) | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling Straightened whilst adjusting drive chain. (2.4 (a)) | 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 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Nearside Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Rear Brake cable excessively corroded |3.2.A1b| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Rear suspension component seized |2.4A2a|ii|| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| An item not tested |Manual| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Suspension rod modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Stop lamp does not illuminate immediately a brake applies with front control |1.3.1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |