T U R F   B U S T E R  ®  Built-in Rim Guard also helps maintain tire pressure longer. Download PDF SIZE PRODUCT CODE PLY MTD DIAMETER MTD WIDTH RIM WIDTH MAX LOAD CAPACITY @ 10MPH MAX PSI TIRE WEIGHT AT25 x 12 - 9 537080 Belted 25.1 12.1 10.00 430 5 28.3