| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Footrest missing |6.2.1a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Fuel system component insecure |7.2.1b| | 2 |
| Position lamp switch faulty |1.1.4a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Direction indicator insecure |1.5.3b| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Horn missing |1.7.1| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 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 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Registration plate issues | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |