| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 60 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 22 |
| Drive chain excessively loose |6.2.1d| | 20 |
| Headlamp aim out of alignment | 20 |
| Rear reflector missing (4.8.2 (a) (ii)) | 20 |
| Registration plate issues | 18 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Steering headbearing has excessive free play |2.2.2| | 12 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Horn not working |1.7.3a| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 8 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 8 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Rear Footrest missing |6.2.1a| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Drive chain excessively tight |6.2.1d| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Brake excessively binding |1.2.1 |f|| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Registration plate lamp issues | 4 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Horn missing |1.7.1| | 3 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Footrest missing |6.2.1a| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 3 |
| 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)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Nearside Steering lock stop missing |2.1.3| | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 2 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Steering lock stop missing |2.1.3| | 2 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear wheel spindle loose |2.4.A.2b| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| 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| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Shock absorber has a serious fluid leak both (5.3.2 (b)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 2 |
| Drive chain worn to excess (6.2.1e) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Rear Footrest missing (6.2.12 (a)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear 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 |
| Offside 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 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Brake performance not tested |1.2.1 |g|| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake lever |1.3.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak N/S fork seal leaking onto brake caliper |5.3.2 |b|| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Stop lamp not working R. brake switch not working |4.3.1 |a| |ii|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Front Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Rear Suspension component pin or bush excessively worn Rear swing arm bushes excessive play |5.3.4 |a| |i|| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Front suspension assembly component missing front pinch bolt missing |2.3.1| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Footrest missing Pillion footrests missing |6.2.12 |a|| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Rear spindle |6.2.1h| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Wheel alignment incorrect which adversely affects the steering forks twisted |2.5.1| | 1 |
| Exhaust mounting does not fully support the exhaust system Held on with cable ties |7.1.1.c| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear suspension fouling which affects the movement of the rear suspension Right footrest bent causing rear brake master cylinder to rub on swing arm. |2.4.A.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Stop lamp not working brake control |4.3.1 |a| |ii|| | 1 |
| Rear Rear position lamp missing number plate light |1.1.1a| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Rear Footrest missing Both sides |6.2.1a| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Footrest insecure Main mounting bolt missing |6.2.1a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort disc warped |1.2.1 |e|| | 1 |
| Direction indicator not working all motorcycle |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride spring link locking clip missing |6.2.1h| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Front position lamp missing SIDE LIGHT |1.1.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Stop lamp does not illuminate immediately a brake applies From handle bars |1.3.1a| | 1 |
| Stop lamp not working From front brake switch |4.3.1 |a| |ii|| | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Front Stop lamp does not illuminate immediately a brake applies lever |1.3.1a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Horn missing |1.7.1| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Direction indicator flashing more than 120 times per minute all |1.5.1c| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Front Shock absorber has a serious fluid leak folks legs |5.3.2 |b|| | 1 |
| Front Front wheel bearings are excessively tight brake |2.3.5b| | 1 |
| Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies switch |1.3.1a| | 1 |
| Drive chain excessively loose and very dry |6.2.1d| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp dipped beam affected by the operation of another lamp high beams comes on when dipped beam switched on |1.2.2c| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced bolt missing |6.1.1 |b| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen no beam pattern (4.1.2 (a)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering ,handle bar straight wheel pointing left (2.4 (a)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen kick up to to offside taped up (4.1.2 (a)) | 1 |
| Rear Stop lamp not working not operating from rear brake (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Rear Wheel bearing has excessive play sprocket carrier (5.1.3 (a) (i)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Central Stop lamp switch with a delay in operation Front brake switch not operating brake light (4.3.2 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect Rear shock absorber no damping (5.3.2 (b)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Steering linkage component deformed to the extent that steering is affected FORKS TWISTED IN THE YOKES (2.1.3 (c) (ii)) | 1 |
| Brake indicates excessive fluctuation of brake effort Suspect front disc warped (1.2.1 (e)) | 1 |
| Drive chain sprocket excessively loose Rear cush drive rubbers worn (6.1.7 (c) (i)) | 1 |
| Throttle operating incorrectly sticking on full lock (6.2.7 (a) (i)) | 1 |
| Footrest missing both pillion (6.2.12 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Drive chain excessively loose (6.2.1d) | 1 |
| Exhaust mounting does not fully support the exhaust system (7.1.1.c) | 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 |
| Locking device(s) not correctly fitted which may make the motor bicycle dangerous to ride Gear change linkage (6.2.1h) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear Brake master cylinder insecure rear brake master cylinder connecting rod to pedal damaged, pedal stop also appears to be missing. (1.1.10 (c)) | 1 |
| Rear Drive chain sprocket worn to excess (6.2.1e) | 1 |
| Front wheel bearings have excessive free play (2.3.5b) | 1 |
| Rear wheel bearings have excessive free play (2.4.A.2c) | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Horn not working (1.7.3a) | 1 |
| Nearside Front suspension assembly component loose (2.3.1) | 1 |
| Offside Front Engine mounting/bracket missing bolt missing (6.1.8 (a) (ii)) | 1 |
| Front Brake grabbing severely front brake disc bent and grabbing in two places (1.2.1 (c)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working foot (4.3.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Shock absorber has a serious fluid leak Both Front forks leaking (5.3.2 (b)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Offside Steering linkage locking device missing (2.1.3 (d)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls From rear brake control (4.3.2 (a) (iii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Clutch lever bent so it cannot be readily operated (6.2.7 (b)) | 1 |
| Front Steering operation fouling on the fuel tank or bodywork on full lock steering stop broken (2.1.4 (b)) | 1 |
| Front Steering operation linkage fouling when handlebars turned from lock to lock cable front right acting as stop (2.1.4 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Rear Steering linkage component insecure (2.1.3 (a) (i)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Nearside Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Wheel excessively damaged (5.2.2 (c) (i)) | 1 |
| Front Shock absorber has a serious fluid leak Left (5.3.2 (b)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure side stand mounting bracket loose (6.1.1 (b) (i)) | 1 |
| Front Brake caliper inadequately mounted incorrect bolt fitted in front caliper & not fitting correctly (1.1.16 (c) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure gear lever very worn, insecurely fastened to shaft (6.1.1 (b) (i)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls no brake light with rear pedal (4.3.2 (a) (iii)) | 1 |
| Rear Brake has no recorded effort at a wheel no brake effort registered (1.2.1 (a) (ii)) | 1 |