| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Registration plate issues | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Offside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Steering linkage has excessive free play |2.2.2| | 1 |
| Stop lamp remains on when the brake is released brake pedal not releasing |1.3.1e| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Floor brake test indicates a sticking brake rear brake pedal stiff, not releasing brake |3.3.C2c| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |