| Most common failures | No# failures |
|---|
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Registration plate issues | 3 |
| Headlamp aim out of alignment | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| 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 |
| Front position lamp does not illuminate immediately when switched on (1.1.3a) | 1 |
| Drive chain excessively loose (6.2.1d) | 1 |
| Brake fluid reservoir fluid level dangerously low (3.2.B1d) | 1 |
| Nearside Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Offside Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Steering movement excessively stiff with the weight on the lower bearing (2.2.1a) | 1 |
| Rear Brake hose leaking fluid (3.2.B4) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. (3.3.C1b) | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |