Sealed cartridge bearings High flange design Spacing: 100mm frt, 120mm rear HOLLOW CORE lightweight heat-treated axle New lighter design Front hubs use 9x1 thread pitch while Rear hubs use a 10x1 axle RR 1s FX/FW 32H B/O 10mm Aly Blk RIM 120mm 62 62 28.125 28.125UPC/EAN/GTIN: 072774375448