Lawn tires (R) Lawn tires are designed just for that, grass, like grass. Lawn tires are designed to work on patios and grassy terrain without leaving tracks. Lawn tires are the same type of tire found on most motorized lawnmowers. There are 3 main types of tires that Kubota offers on its tractors.
These are grass, workplace (R4) and agriculture. Their functionality varies and they have specific functions for a variety of jobs. Lawn tractor tires are the least aggressive of all tractor tires and offer the lowest traction. They ensure adequate dry traction, but their performance capacity decreases in humid climates.
Once the grass or road surface becomes slippery, the tire loses its traction and grip capacity. As a result, the use of these tires is only recommended in dry climates. Logic would tell us that if it had a little more guts left, the high-end would also have been able to release those tires, but it's interesting that we're getting very similar results between those two ranges. So, if you plan to use your tractor to mow your lawn 80% or more of the time, these will be the tires for you.
Typically, tires in this category are manufactured with a circumferential tread composed of profiled blocks (for example, chevrons or diamonds), a ratio between the tread and the low gaps and the shoulders are round. Ground and field traction is not a problem for the directional placement of the tread studs, which propels the tire forward in various field conditions. However, there may be times when changing size makes sense, for example, when looking to expand a tire's footprint to reduce compaction, increase or decrease height, or when moving from imperial to metric size nomenclature. Manufactured with cutting in mind, R-3s generally have treads that are less aggressive and shallower than other types of compact tractor tires, so they don't break or ruin delicate grass, forage platforms or grass.
Radials offer a wider footprint, which distributes the weight of a tractor over a larger surface area and causes less damage to the grass. The reinforced shape and reinforced construction allow the tire to carry and support heavy loads with ease, increasing its performance in heavy duty jobs. Made with a harder compound, these tires withstand the wear and tear of asphalt, concrete and gravel much better than their counterparts. Because of their strong housings and high puncture resistance, R-4 tires are also often the most durable of the three types of compact tractor tires.
However, that superior grip and the fact that R-1 tires have the deepest tread of all three types can leave grooves in grass and grass, since they are designed to hold onto the ground instead of floating on it. It's very interesting, I seem to have enough traction here, sitting on this ice with my grass tires to not be able to let go of them.