| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 24 |
| Horn not working |1.7.3a| | 21 |
| Drive chain excessively loose |6.2.1d| | 21 |
| Headlamp aim out of alignment | 17 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Drive chain worn to excess |6.2.1e| | 9 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 9 |
| Registration plate issues | 9 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Nearside Front Direction indicators not working |1.5.1c| | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 5 |
| Nearside Rear Direction indicators not working |1.5.1c| | 5 |
| Registration plate lamp issues | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Nearside Rear Footrest missing |6.2.1a| | 4 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 4 |
| Rear Footrest missing |6.2.1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Nearside Direction indicators not working |1.5.1c| | 3 |
| Rear Brake disc|s| cracked |3.2.A1g| | 3 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Fuel system component insecure |7.2.1b| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Seat insecure |6.2.1a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Offside Rear Footrest missing |6.2.12 |a|| | 2 |
| Roller brake test No brake control achieves an efficiency of 30% |1.2.2 |a| |i|| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Nearside Handlebar deformed |2.1.1b| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Brake pedal is inoperative |3.1.3c| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Horn sound not in accordance with requirements |7.7 |c|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 2 |
| Offside Front Footrest insecure (6.2.12 (a)) | 2 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Offside Rear Lower Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Upper Horn not working |1.7.3a| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Front Upper Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Front Brake lagging in operation |1.2.1 |d|| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Offside Direction indicators not working front and rear |1.5.1c| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Nearside Footrest insecure riders |6.2.1a| | 1 |
| Nearside Motorcycle structure excessively damaged swing arm worn through |6.1.1a| | 1 |
| Indicator switch defective on near side |1.5.4| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Front Upper Direction indicator insecure |1.5.3b| | 1 |
| Rear Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake grabbing severely |1.2.1 |c|| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Upper Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Front Brake linkage has restricted free movement front brake |1.1.15 |e|| | 1 |
| Offside Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Indicator switch insecure |1.5.4| | 1 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Offside Front Handlebar deformed |2.1.1b| | 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 |
| Central Front Upper Horn not working |1.7.3a| | 1 |
| Nearside Upper Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 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 Chain securing link fitted incorrect |6.2.1h| | 1 |
| Rear suspension bearing has excessive free play Swing arm bearings |2.4.A2a|i|| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Direction indicators not working missing |1.5.1c| | 1 |
| Offside Direction indicators not working insecure |1.5.1c| | 1 |
| Rear suspension bush has excessive free play top |2.4.A2a|i|| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Wheel more than one fixing loose sprocket bolt loose . |5.2.1 |a| |ii|| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Drive chain fouling another component |6.2.1d| | 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 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake fluid reservoir severely damaged |3.2.B1b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Front footrest hanger insecure |6.2.1h| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Brake pedal is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Rear Brake component is severely distorted |3.1.5| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Fuel tank insecure filler onto tank seal |6.1.3 |a| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside Front Upper Handlebar deformed |2.1.1b| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Brake lever attachment screws missing |3.1.2b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Indicator tell tale not functioning |1.5.2| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Headlamp aim not tested all electrical systems not checked as battery flat |4.1.2 |b|| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Offside Rear Brake disc|s| has excessive run out warped rear disc |3.2.A1m| | 1 |
| Front Throttle operating incorrectly sticking throttle |6.2.1f| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Footrest missing Both rear |6.2.12 |a|| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Central Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Centre Front Headlamp aim not tested |1.6| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Upper Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Stop lamp does not illuminate immediately a brake applies hand control |1.3.1a| | 1 |
| Front Position lamp missing |4.2.1 |a|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Stop lamp not working with rear brake leaver |4.3.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn Swinging Arm Bushes (5.3.4 (a) (i)) | 1 |
| Nearside Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn Rear Shock Bottom Bush (5.3.4 (a) (i)) | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition Silencer (8.1.1 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Front Footrest missing securing clip missing to footpeg pin (6.2.12 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Nearside Motorcycle structure is fractured and structural rigidity is significantly reduced Cut into frame near side stand. (6.1.1 (a) (i)) | 1 |
| Fuel tank leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Position lamp light intensity significantly reduced only 1 of the 3 LEDs working (4.2.3 (a) (ii)) | 1 |
| Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Rear Brake master cylinder leaking master cylinder (1.1.10 (b) (ii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure sidestand (6.1.1 (b) (i)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Upper Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Stop lamp not working Rear brake (4.3.1 (a) (ii)) | 1 |