• All front wheels and tires on the 3120-3720 are 2-position wheels
• Bar tread (R1)—used in applications where full traction is desired
• Industrial tread (R4)—less aggressive than the R1 tire; designed for industrial applications such as landscapers, contractors, rental yards, and roadside mowing
• Turf tread (R3)—spreads tractor's weight over a large area for improved flotation and reduced turf damage
• R3 Turf Special tires are designed and built for golf course applications; the Turf Special offers the widest footprint possible without going to costly tires and wheels; made with the most solid-to-void ratio of any golf course tire, thus giving the least weight per square inch; built especially flexible and soft with rounded shoulders so as not to cut the turf; R3 Turf Special tires are made with the highest-grade, longest-wearing type of rubber compound, which gives the longest life

NOTES:
1) Front and rear tread dimensions are finely matched to keep tires from running on the rows and damaging crops. See dimensions information for tread dimensions.
2) Tire dimensions will vary slightly due to manufacturing tolerances.
3) Tire dimensions will increase slightly with tire age.
4) R3 Turf Special tires are not compatible with 72-in. mid-mower decks.

On 4WD tractors, the front tires run slightly faster than the rear tires. Front and rear tire options available from the factory will maintain the correct ratio (over speed).