Backhoe Tires By Size (Front and Rear Backhoe Tires by Size). We carry a large selection of Backhoe Tires by size. From Directional Backhoe Tires to Non-Directional Backhoe Tires, Monster Tires carries them all. We offer a wide variety of tread patterns and PLY options when it comes to a new set of Front Backhoe Tires or Rear Backhoe Tires. The most common rear backhoe tire options are the 21Lx24, 19.5Lx24, 17.5Lx 24, 16.9x28, and 16.9x28. While some of the less common rear backhoe tires (14.9-24, 16.9-24, 18.4-26, 16.9-28, and 18.4-28) may be hard to find, we carry all sizes for you to choose from. As for the most common front backhoe tires (12x16.5 and 10x16.5) and many others, you can trust that Monster Tires has the largest selection for you to choose from.