| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 16 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 10 |
| Steering headbearing has excessive free play |2.2.2| | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Direction indicator incorrect colour |1.5.1b| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Registration plate issues | 3 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Nearside Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Brake lever has restricted free movement hitting hand grip |1.1.15 |e|| | 1 |
| Direction indicator not working all |4.4.1 |a| |ii|| | 1 |
| Front Brake lever pivot has excessive free play |1.1.1 |b|| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicator incorrect colour all four indicators faded to white |1.5.1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Shock absorber has negligible damping effect no movement (5.3.2 (b)) | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Upper Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake lever mounting cracked |3.1.2c| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Stop lamp not working front stop light does not function |4.3.1 |a| |ii|| | 1 |
| Stop lamp not working front brake light switch not working (4.3.1 (a) (ii)) | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Stop lamp not working lever operated (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working lever operated (4.3.1 (a) (ii)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Front Engine mounting/bracket damaged or deteriorated resulting in excessive movement engine mounting bushes (6.1.8 (a) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Rear Direction indicators not working lens missing |1.5.1c| | 1 |
| Nearside Front Front suspension assembly excessive wear or free play in a front suspension component top arm |2.3.4| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick Rear shoes on the steel |3.2.A1f|i|| | 1 |
| Nearside Front Brake lever has inadequate reserve travel Rear brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear brake binding | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort Rear brake indicates oval rear drum |3.3.A1d| | 1 |
| Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Rear Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Position lamp showing white light to the rear |4.2.3 |a| |ii|| | 1 |
| Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| All direction indicators incorrect colour |4.4.3 |a|| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Rear wheel rotation likely to be impeded rear fender insecure |6.2.1b| | 1 |
| All position lamps do not illuminate immediately when switched on front and rear not working |1.1.3a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Brake component has an inadequate repair master cylinder not fitted to handle bars sucure |3.1.5| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Nearside Front suspension assembly component cracked |2.3.1| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Nearside Brake lever has inadequate reserve travel rear brake lever coming back to the handlebar |3.1.3b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| 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 |1.6.B.1| | 1 |
| Stop lamp remains on when the brake is released When front brake is operated |1.3.1e| | 1 |
| Front Front suspension assembly component loose |2.3.1| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Stop lamp not working front brake switch faulty |4.3.1 |a| |ii|| | 1 |
| Offside Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies brake switch faulty |1.3.1a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (1.6.B.1) | 1 |
| Rear Brake lever has inadequate reserve travel (3.1.3b) | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Brake hose excessively deteriorated | 1 |
| Exhaust is leaking and excessively noisey (7.1.1b) | 1 |