Pro version of the Vandero is a precision sealed hub with proven in-bound 3/8` axle bolts and two plastic guards Precision bored fully concentric bearing seats for a smoother spin and prolonged bearing life 17mm 7075-T6 aluminum axle with steel helicoil thread inserts 3/8` heat-treated chromoly axle bolts with 17mm wrench flats and a 6mm hex slot Replaceable plastic hub guards included 6903RS sealed cartridge ball bearings 7075-T6 aluminum hub shell FT 36H B/O 3/8 7075-T6 Blk Rim 100mmUPC/EAN/GTIN: 630950912759