When farm machines roll on rubber rather than steel the results are protection from shock and reduced rolling resistance. Shock reduction means higher speeds with less breakage and longer life for the machines plus increased comfort for the machine operator. A decrease in rolling resistance means more speed with less fuel consumption.

Because of the increasing demand for rubber tires on farm machines, and because there are many machines now in use which are not equipped with rubber, this bulletin is mainly devoted to pictorially describing an economical method of changing from steel to rubber. Brief data substantiating the reasons for making the change are given first.