- A distance allowing free movement of the braking system’s air pipes, and not more than 50cm.
- The distance depends on the length of the cab and the position of the fifth wheel and should not be less than 400 cm.
- A distance in which both can move in all directions without touching each other, and that allows free movement of the connectors during maximal turn.
- The distance between the trailer and the cab should not be more than 150 cm.