The Cooper Tire Roadmaster RM351 HD Tire is engineered for mixed-service applications such as construction, logging and mining operations. The tire is designed for on- and off-road driving and comes in two sizes: 11R22.5 and 11R24.5, in load range H.This tire is a full inch wider than the company's RM300 HH, with a 20 percent larger footprint. Tie bars between the outside lug and the should, and shoulder grooves that are linked and interlocked, help prevent tire squirm and irregular wear. The tire features five lugs that have an open pattern to minimize stone holding and enhance traction. The casing itself is robust, with four-belt steel design construction. These tires include a six year, two retread warranty.
