| Most common failures | No# failures |
|---|
| Horn not working |1.7.3a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Lower Rear suspension bush has excessive free play shoxck |2.4.A2a|i|| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Offside Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear 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 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Headlamp aim out of alignment | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.4 |a|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Horn not working missing (7.7 (a)) | 1 |
| Fuel cap ineffective seal missing (6.1.3 (b) (i)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Drive chain sprocket excessively loose retaining circlip missing (6.1.7 (c) (i)) | 1 |