World Championship Special Edition Speedster created to celebrate the world championship in U.S.A Limited edition colorway features black tread with white side walls, a red stripe, and blue banners with white stars, merica! Honeycomb center tread provides virtually zero rolling resistance and unbelievable tread life LSG - Low Specific Gravity Compound is incredibly lightweight, designed for BMX and Racing, it allows for superior speed with a hardness of 66 A Standard 20x1-1/8 451 Fold Bk/Wht/Rd 110 90 66a LSG NoUPC/EAN/GTIN: 484712067320