| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Headlamp aim out of alignment | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Registration plate issues | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| 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| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Offside Rear Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Front Indicator tell tale not operating correctly |1.5.2| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Centre Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Upper All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Drive chain worn to excess |6.2.1e| | 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 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Rear reflector on motorcycle missing Only 1 fitted to nearside of motorcycle |1.4.1| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front Upper Direction indicator missing |1.5.1a| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |