| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Registration plate issues | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Exhaust mounting missing |7.1.1c| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 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 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Front Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake rod insecure |1.1.15 |c|| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Stop lamp not working No rear brake switch (4.3.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Footrest insecure |6.2.1a| | 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 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel hose leaking At fuel tap |7.2.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Sidecar rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Brake lever cracked |3.1.2c| | 1 |
| Front Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Front Brake lever cracked |3.1.2c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |