Low flange style BMX front hubDrilled and machined collars for lighter weight6061-T6 body with a 7075-T6 heat treated hollow axle with 3/8` mm hollow bolts4 sealed cartidge bearings offer a smooth ride175gFT36HB/O 3/8Sil175g100383834.234.2UPC/EAN/GTIN: 888571094198