This part of ISO 789 specifies a method of determining the turning and clearance diameters of wheeled agricultural tractors.
It applies to wheeled agricultural tractors having at least two axles fitted with pneumatic tyres.

This part of ISO 789 specifies a method of determining the turning and clearance diameters of wheeled agricultural tractors.
It applies to wheeled agricultural tractors having at least two axles fitted with pneumatic tyres.