| Most common failures | No# failures |
|---|
| Registration plate issues | 10 |
| Headlamp aim out of alignment | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 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 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Direction indicator missing |1.5.1a| | 2 |
| Rear Direction indicator missing |1.5.1a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Brake hose leaking fluid |3.2.B4| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Offside Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Nearside Front Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Brake hose excessively deteriorated | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Direction indicator missing all |1.5.1a| | 1 |
| Offside Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Vehicle identification number not permanently displayed |6.3.5a| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Headlamp missing |1.2.3a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested switch not working (4.1.2 (b)) | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |