There are two types of OTR tyres: radial and bias. OTR tyres come in two types: radial and bias. Radial OTR tyres are designed with steel belts that run perpendicular to the tread, providing better stability and wear resistance. They are suitable for various vehicles, including mining trucks, earthmoving equipment, and construction equipment. On the other hand, bias OTR tyres have plies that run diagonally across the tyre, providing better durability and resistance to damage. They are better suited for job sites with stationary work and less distance, such as ports and industrial facilities.