| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Registration plate issues | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp switch faulty |1.2.4| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Headlamp aim out of alignment | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Offside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Steering lock stop maladjusted |2.1.3| | 1 |
| Decelerometer brake test no brake control achieves an efficiency of 30% |3.3.E1a| | 1 |
| Decelerometer brake test neither brake control achieves an efficiency of 25% |3.3.E1c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Brake pipe excessively chafed |3.2.B2a| | 1 |
| Offside Front Front mudguard can easily contact the wheel |2.3.7| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |