8x18 tires

The 8x18 tire size is used on the rear tires of smaller agricultural tractors, particularly those with two-wheel drive (2WD). They provide the necessary traction for various light to medium-duty tasks on the farm, such as tilling, plowing smaller areas, and operating light implements. The tire size offers a balance between providing sufficient ground contact for improved grip and maintaining a decent footprint for adequate maneuverability.