* Weight distribution: The rear of a tractor is heavier than the front, due to the engine and transmission being located in the back. The larger rear tires help to distribute the weight of the tractor more evenly, which improves traction and prevents the tractor from tipping over.
* Traction: The larger rear tires provide more traction than the front tires, which is important for pulling heavy loads. This is because the larger tires have a greater contact area with the ground, which allows them to dig in and grip better.
* Flotation: The larger rear tires also help to improve flotation, which is the ability of a vehicle to stay on top of the ground. This is important for working in soft or wet conditions, as the larger tires help to spread out the weight of the tractor and prevent it from sinking.
* Maneuverability: The smaller front tires make it easier for a tractor to turn, which is important for working in tight spaces.
In general, the larger rear tires of tractors are designed to provide better traction, weight distribution, flotation, and maneuverability.
