Tires for Compact Utility Tractors

Richard L. Parish, PhD, PE

Three types of rear tires are available for compact utility tractors, and at least five types are available for the front. The different types of tires serve different purposes. You can select agricultural tires for general farming and turf tires for use on turfgrass, or compromise with an industrial tread.

Agricultural Lug Tread (R-1): The most basic type of rear tire is the basic agricultural lug tread. This is the typical “tractor tire”. The lugs are normally at angles of either 45° or 23°. This tire is intended to provide good traction for tillage operations, where an implement must be pulled through the soil. The lugs bite effectively into soft or loose soil. This tire design provides the best traction of any tire type in most soil conditions, but also does the most damage to turf. This type is a good choice if you will be using your tractor to power farm or garden implements, but is not a good choice for mowing turfgrass. There are typically several choices for front tires to use with these rear tires. If the tractor has front-wheel-assist (FWA), it will normally have smaller agricultural lug tread tires on the front. If the tractor is two-wheel-drive only, the front tires will typically be an agricultural multiple-rib tread (F-2 or F-2M).

Turf Tread (R-3): Some compact utility tractors are intended primarily for use on turfgrass and have turf tires. These tires tend to be low and wide, with a shallow tread. They have no lugs. These tires provide much less traction for tillage, but damage turf much less than typical ag tires. Whether the tractor has FWA or two-wheel-drive, the front tires are generally turf tread also. Although these tires have limited traction under agricultural conditions, they have been found to provide good traction and superior wear resistance when used on gravel, and they are a favorite tire for use in pulling trailers on gravel roads in nurseries. Because these tires are low and wide, they make a tractor more stable on side slopes. They also give a soft ride.

Industrial Tread (R-4): A very popular compromise for compact utility tractors is the industrial tread. The lugs on these tires are wider and shallower than on typical ag tires, and the lugs have rounded edges. They provide some of the traction of ag tires while being easier on turfgrass. As the name implies, they were originally designed for use on construction equipment or highway mowing tractors operating on firm soil, but their versatility has made them very popular for compact utility tractors – especially with FWA and a front-end loader. With FWA, the front tires will normally be the same industrial tread. If the tractor has two-wheel-drive, the front tires are typically an industrial multi-rib tread (F-3).

Rice and Cane Tread (R-2): These tires are similar to the agricultural lug tread, but the lugs are deeper. As the name implies, they are found primarily on tractors used for rice and sugarcane farming. Several decades ago when compact tractors were first imported from Asia, many of them had R-2 tires, but they are normally not available in the U.S. on current new compact tractors. They are still popular on compact tractors in Asia.

Not all of the above options are available with all brands/models of tractors, but you will generally have several choices. You can select a combination of tires best suited to your needs.