NEW Harvest King R-1 Tractor Rear Tire. We have over 30 years experience and several warehouses full of tires. Check out our other auctions for more Tire Deals! Or Ply Ratings on tires are now used in comparison for what used to be termed as plies. If a tire carries an ST in front of the size, such as an ST235/80R16 these tires may only be used on a trailer, and not on a vehicle.If you have any questions on plies and ply ratings. With our volume it is impossible for us to take actual pictures of each tire being listed. Our pictures are to be used as a reference to the tread design and not the actual photo of the tire. Any rims pictured are Not included and only pictured to feature the tire. The item "New Tire 13.6 28 Harvest King R-1 Tractor Rear 8 ply Tube Type 13.6x28" is in sale since Friday, April 19, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Wheels, Tires & Parts\Tires". The seller is "ronapreston" and is located in Firth, Nebraska. This item can be shipped to United States.