| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 26 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 12 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 6 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Rear Position lamp not working (4.2.1 (a)) | 5 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 5 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 5 |
| Registration plate issues | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Offside Rear Footrest insecure |6.2.1a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front 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 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Front Brake master cylinder defective but brake still operating reservoir sight glass |1.1.10 |b| |i|| | 2 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 2 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 2 |
| Rear Upper Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 2 |
| Rear wheel rotation likely to be impeded mudguard rubbing |6.2.1b| | 1 |
| Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Pillion seat with a defective supporting structure |6.2.6 |a| |i|| | 1 |
| Rear Wheel fixing loose |single fixing| Rear wheel hugger loose. |5.2.1 |a| |ii|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Stop lamp not working from front brake (4.3.1 (a) (ii)) | 1 |
| Brake lever has insufficient reserve travel rear brake (1.1.2 (a)) | 1 |
| Brake reaction bracket insecure FRONT CALIPER BRACKET |3.2.A1j| | 1 |
| Centre Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Lower Brake locking device insecure |3.2.A1e| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies FRONT BRAKE NOT WORKING STOP LIGHT |1.3.1a| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Centre Rear Rear wheel rotation likely to be impeded REAR MUDGUARD LOOSE |6.2.1b| | 1 |
| Rear Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement forms part of rear suspension (6.1.8 (a) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Headlamp insecure headlamp bulb |1.2.3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| All direction indicators not working Indicators not flashing. (4.4.1 (a) (ii)) | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Front Brake grabbing severely very dry pivot (1.2.1 (c)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Brake lever has inadequate reserve travel control 2 |3.1.3b| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Front Wheel hub damaged to the extent that wheel security is adversely affected (5.2.1 (b) (ii)) | 1 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front Lower Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Upper Rear suspension bush has excessive free play shock |2.4.A2a|i|| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure fairing (6.1.1 (b) (i)) | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Headlamp at least one does not illuminate on dipped beam Bulb incorrectly fitted |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam Bulb incorrectly fitted |1.2.2a|ii|| | 1 |
| Rear wheel bearings have excessive free play Possibly in drive axle bearing |2.4.A.2c| | 1 |
| Brake linkage has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Central Front Upper Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly CONTROL LOOSE |6.2.7 |a| |i|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake caliper insecurely mounted and braking performance affected |1.1.16 |c| |ii|| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Front Upper Brake linkage has abnormal movement due to excessive wear front caliper bracket bush worn to excess |3.2.A1i| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake cylinder leaking |1.1.16 |b| |i|| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Central Front Suspension rod modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Stop lamp likely to become detached |4.3.1 |c| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear suspension bush has excessive free play top shock mount |2.4.A2a|i|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear switch |1.3.1a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Central Front Upper Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Handlebar mounting so insecure that steering is adversely affected |2.2.1 |a| |ii|| | 1 |
| Rear Stop lamp not working front brake (4.3.1 (a) (ii)) | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Locking device missing, rear brake lever. |6.2.1h| | 1 |
| Central Front Upper Headlamp at least one does not illuminate on dipped beam no dip beam |1.2.2a|i|| | 1 |
| Central Rear Lower Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort rear brake |3.3.A1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected outer cable support broken (6.2.7 (a) (ii)) | 1 |
| Rear Brake pivot excessively corroded (1.1.15 (b)) | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component caliper stabilizer arm top and bottom bearing worn |2.3.4| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Brake master cylinder severely corroded |3.2.B1b| | 1 |
| Front Brake linkage excessively worn (1.1.15 (b)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Shock absorber has an excessively worn bush Top bush (5.3.2 (c)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases manifold joint (6.1.2 (a)) | 1 |
| Horn not working horn not working |7.7 |a| |ii|| | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Nearside Front Brake caliper|s| insecure mounting bracket bushes worn |3.2.A1j| | 1 |
| Front Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Stop lamp not working fit a new bulb (4.3.1 (a) (ii)) | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component bushes worn |2.3.4| | 1 |
| Front Brake cylinder cracked |1.1.16 |a| |i|| | 1 |
| Front Brake caliper inadequately mounted and braking performance affected |1.1.16 |c| |ii|| | 1 |
| Offside Front Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Central Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Offside Rear Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Brake lagging in operation |1.2.1 |d|| | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Brake lever has insufficient reserve travel goes to handle bar (1.1.2 (a)) | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |