The axles of the RG170.B grader were made to ensure robustness and greater ability to transfer power to the ground. The front axle is a welded steel construction with high strength cast parts, offering an ample and constant ground clearance of 580 mm throughout its length, due to its straight-line geometry. The wheel lean, at 15.3°, to the right or to the left, and the oscillation of 20° to each side allows irregularities on the ground to be followed.
The rear axle is made in cast iron, and the tandem structure is built using a welded box profile in steel plates. Both were designed to withstand the most severe conditions. The rear axle is equipped with the Diff Lock system, activated by a switch on the operator console. The oscillation of the tandem is 20° to each side.