| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 18 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 17 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 17 |
| Registration plate lamp issues | 16 |
| Headlamp aim out of alignment | 15 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Rear Brake excessively binding (1.2.1 (f)) | 11 |
| Headlamp aim not tested (4.1.2 (b)) | 9 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 7 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 6 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 6 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Rear Brake excessively binding |1.2.1 |f|| | 4 |
| Brake pedal insecure (1.1.2 (e) (i)) | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Rear Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 4 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 4 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (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 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 3 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 2 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 2 |
| All direction indicators incorrect colour (4.4.3 (a)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 2 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 2 |
| Rear Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Brake grabbing severely (1.2.1 (c)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Registration plate issues | 2 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Wheel bearing has excessive play Front (5.1.3 (a) (i)) | 1 |
| Shock absorber has a serious fluid leak Front (5.3.2 (b)) | 1 |
| Position lamp not working Front (4.2.1 (a)) | 1 |
| Stop lamp with a multiple light source more than 1/2 not functioning Rear (4.3.1 (a) (ii)) | 1 |
| Position lamp not working Rear (4.2.1 (a)) | 1 |
| Valve stem seriously damaged Rear (5.2.3 (j)) | 1 |
| Brake excessively binding Front (1.2.1 (f)) | 1 |
| Brake excessively binding Rear (1.2.1 (f)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Brake master cylinder defective but brake still operating (1.1.10 (b) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Throttle operating incorrectly loose on handle bar (6.2.7 (a) (i)) | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Exhaust has a major leak of exhaust gases front and rear (6.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases Exhaust link pipe rotten (6.1.2 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure front mud guard insecure. (6.1.1 (b) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Throttle operating incorrectly Affected by steering (6.2.7 (a) (i)) | 1 |
| Rear Shock absorber has negligible damping effect Suspension linkage components appear completely siezed (5.3.2 (b)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Valve stem seriously damaged Both valves required (5.2.3 (j)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Rear Brake linkage has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Front Steering linkage locking device ineffective lock stop (2.1.3 (d)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Rear Brake clevis joint excessively worn (1.1.15 (b)) | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Brake pedal pivot excessively worn (1.1.1 (b)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Wheel spoke excessively loose several (5.2.2 (d)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Nearside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Lower Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Central Rear Upper Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Shock absorber has negligible damping effect possibly siezed no movement (5.3.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the steering Bars twisted (2.4 (a)) | 1 |
| Rear Brake pedal insecure added locking bolt (1.1.2 (e) (i)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Drive chain sprocket so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Suspension component has an unsafe modification L plate cable tied to tub pulling gaurd in rubbing on tube, removed (5.3.3 (c) (i)) | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied altered at time of test (1.1.2 (d)) | 1 |
| Drive chain worn to excess chain not sitting on rear sprocket correctly (6.1.7 (c) (i)) | 1 |
| Rear Suspension component mounting modified so the suspension is inoperative failing to return (5.3.3 (c) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Rear Rear reflector missing covered with l plates (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation not working (4.3.2 (a) (ii)) | 1 |
| Front Steering linkage component insecure to the motorcycle structure (2.1.3 (a) (i)) | 1 |
| Rear Brake cylinder operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Rear Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Front Lower Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Central Rear Lower Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Wheel hub worn to the extent that wheel security is adversely affected unsafe modification (5.2.1 (b) (ii)) | 1 |
| Forks in such a condition that steering control is adversely affected unsafe modification (2.2.2 (d) (ii)) | 1 |
| Rear Footrest missing both (6.2.12 (a)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Front Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake pedal pivot has excessive free play (1.1.1 (b)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake pedal so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted Wrong side of roller (6.1.7 (j) (i)) | 1 |
| Shock absorber has a serious fluid leak l/h fork |5.3.2 |b|| | 1 |
| Rear Shock absorber has negligible damping effect Suspension siezed (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect Seized up (5.3.2 (b)) | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls control brake 1 (front brake) not working (4.3.2 (a) (iii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Brake performance not tested due to bolts missing out of discs (1.2.1 (g)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake disc insecure bolt missing (1.1.14 (a) (ii)) | 1 |
| Rear Brake disc insecure bolt missing (1.1.14 (a) (ii)) | 1 |
| Brake pedal pivot has excessive free play split pin missing out of castle nut (1.1.1 (b)) | 1 |
| Front Shock absorber has negligible damping effect both (5.3.2 (b)) | 1 |
| Drive chain worn to excess chain guide (6.1.7 (c) (i)) | 1 |
| Suspension component attachment bracket/mounting likely to fail Rear shock linkage seized. Shock absorber inoperative. (5.3.3 (b) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Headlamp aim not tested bulb not working (4.1.2 (b)) | 1 |
| Offside Rear Motorcycle structure joining/attachment plate or fastening insecure chain adjuster plate loose (6.1.1 (b) (i)) | 1 |
| Rear Wheel more than one fixing loose (5.2.1 (a) (ii)) | 1 |
| Brake pedal pivot has excessive free play (1.1.1 (b)) | 1 |
| Stop lamp not working From handlebar lever (4.3.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Offside Front Forks insecure yoke bolt missing (2.2.2 (d) (i)) | 1 |
| Front Lower Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Rear Lower Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Rear Lower Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Rear Lower Wheel fixing loose (single fixing) chain adjuster loose (5.2.1 (a) (ii)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Offside Rear Lower Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Drive chain so loose it is likely to fail play in rear cush drive (6.1.7 (c) (ii)) | 1 |
| Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Rear Wheel has loose rivet/s or bolts (5.2.2 (e) (i)) | 1 |
| Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Front Stop lamp not working Front brake light switch not working (4.3.1 (a) (ii)) | 1 |
| Rear Footrest missing both pillion footrests missing (6.2.12 (a)) | 1 |
| Front Steering operation linkage fouling when handlebars turned from lock to lock no lock stop on left side (2.1.4 (a)) | 1 |
| Headlamp light intensity severely reduced low beam dull (4.1.4 (a)) | 1 |
| Rear Direction indicator with a multiple light source more than 1/2 not functioning both rear indicators obscured by covers (4.4.1 (a) (ii)) | 1 |
| Rear Suspension component modified so the suspension is inoperative rear suspension sticking down (5.3.3 (c) (ii)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake component inadequately mounted Locking device missing (1.1.21 (c)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Front Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |1.1.2 |d|| | 1 |
| Rear Position lamp lens seriously defective |4.2.1 |b|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake component insecure activating pin (1.1.21 (c)) | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Front Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Offside Front Steering operation fouling on the fuel tank or bodywork on full lock Lockstop broken (2.1.4 (b)) | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock lock stop broken off bottom yoke (2.1.4 (b)) | 1 |
| Central Front Headlamp aim not tested no dip beam (4.1.2 (b)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect suspension seized (5.3.2 (b)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn suspension linkages seized (5.3.4 (a) (i)) | 1 |
| Rear Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls does not illuminate when front brake is applied (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Rear Lower Brake pedal pivot excessively worn |1.1.1 |b|| | 1 |
| Rear Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Shock absorber has negligible damping effect rear shock not damping seized (5.3.2 (b)) | 1 |
| Rear Drive chain horseshoe locking device incorrectly fitted chain horse shoe clip incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Brake master cylinder insecure front master cylinder loose (1.1.10 (c)) | 1 |
| Rear Exhaust system insecure exhaust insecure (6.1.2 (a)) | 1 |
| Front Headlamp aim not tested no dip beam (4.1.2 (b)) | 1 |
| Front Headlamp not working on dipped beam dip beam not working (4.1.1 (a) (ii)) | 1 |
| Rear Rear reflector missing reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear brake binding | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |