Aggressive widely spaced tread for high degree of traction ''Showdown CR'' and ''Duratrax C3'' in white lettering on sidewall Molded plastic wheels with black finish Duratrax C3 compound compares to the Pro-Line M4 super soft, and the AKA Super Soft compound 1.9'' Showdown CR Mounted Black (2) (12mm Hex) C3 Duratrax Dimensions: diaouter: 121 mm diainner: 45 mm Width: 48 mm