| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Registration plate lamp issues | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Outer Front Upper Front suspension assembly component loose |2.3.1| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Wheel excessively corroded |5.2.2 |c| |i|| | 1 |
| Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Front Motorcycle structure has excessive corrosion which adversely affects braking or steering |6.1.1 |c| |ii|| | 1 |
| Central Front Upper Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Central Rear Position lamp not working (4.2.1 (a)) | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear 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 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Wheel spoke excessively loose spokes |4.2.1b| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride R/H chain adjuster |6.2.1h| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies front and rear |1.3.1a| | 1 |