| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Headlamp aim out of alignment | 3 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Centre Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Brake hose damaged | 1 |
| Nearside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Brake component has an inadequate repair |3.1.5| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |