... The main series are following as:1,Big tubeless series6.00*17.5, 6.75*17.5, 7.5*19. ... series7.50-20, 8.00-20, 8.50-20, Used for heavy-duty truck3, Farming &engineering series7.50-20, 8.00-20, 8.50-20, 8.50 ... -24 Used for farming4,Mid-sized truck series 6.00-16, 5, ... .5X8.251026SR22335281714011R22.522.5X8.251032SR22285.7522271416811R22 22.5x9.00 truck wheels