| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 21 |
| Registration plate issues | 19 |
| Headlamp aim out of alignment | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| 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| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Registration plate lamp issues | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside 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 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Exhaust mounting missing exhaust clamp missing |7.1.1c| | 1 |
| Fuel system component insecure tank |7.2.1b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Footrest missing both. (6.2.12 (a)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Drive belt sprocket worn to excess |6.2.1e| | 1 |
| Front Brake fluid contaminated |1.8 |a|| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear position lamp adversely affected by the operation of another lamp use of indicators |1.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp use of indicators |1.3.2| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls foot brake (4.3.2 (a) (iii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |