| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Registration plate issues | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Horn not working |1.7.3a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Nearside Rear Drive chain sprocket excessively loose |6.1.7 |c| |i|| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Front Upper Fork yoke insecure |2.2.2 |d| |i|| | 1 |
| Offside Rear Brake clevis joint insecure Split pin missing |1.1.15 |c|| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Offside Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Offside Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Wheel fixing missing (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Wheel fixing missing (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp aim not tested Has no beam pattern. Non standard bulb fitted. (4.1.2 (b)) | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Direction indicators not working all flashers |1.5.1c| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |