Low flange style BMX front hub Drilled and machined collars for lighter weight 6061-T6 body with a 7075-T6 heat treated hollow axle with 3/8` mm hollow bolts 4 sealed cartidge bearings offer a smooth ride 175g FT 36H B/O 3/8 Blk 175g 100mm 38 38 34.2 34.2UPC/EAN/GTIN: 888571040164