otr tyre 40.00-57 E4, 1800-25, 1800-33, 2400-35, 2700-49, ... 3300-51, 3700-57 and so on. otr tyre 40.00-57 E4, 1800-25, 1800-33, 2400-35, 2700-49 ... level wear resistance and shock-resistance. Mines around the world run the Hengda 40 in heavy duty wheel loader and earthmoving ...