MINI KMT Supercharger Pulley KIT 2

65 mm / Stock size, 58 mm / 11,5%, 57 mm / 13%, 56,5 mm / 14%, 55,5 mm / 15%, 55 mm / 16%, 54,5 mm / 17%, 53,8 mm / 18%, 53 mm / 19%, 52,3 mm / 20%