Speed Max Abec 9 Bearings Axle Center Bore: 7mm Number of Balls: Ultra Precision 8 Balls Special Features: The ONLY Roll-Line bearings to have an 8-ball cage for unparalleled smoothness and roll One (1) Set= 16 BearingsFor more information on bearings and their care, please read the article “About Bearings and Spacers”. The article can be referenced in EDUCATION on the Skates U.S. main page and by selecting the Roller Learning Center.
