Mu511 27x9r14 Tire Mu511 27x9.00r14 6prDesigned as original equipment for select Polaris Ranger models, the MU511 MU521 are ready to work. Featuring a generous contact patch and a robust, 6 ply rated carcass, the MU511 front and the even wider MU521 rear ensure that you can haul heavy loads with ease. With a tread pattern similar to the Ceros, the MU511 MU521 also offers excellent traction and tread wear. Tall blocks and large void areas clear mud easily, so rainy, muddy weather is no