Classic high-flange track hubs have cog thread of 1.370`x24tpi and Campy compatible lockringHigh tensile strength front and rear bolt axles have stainless steel bolts and washers (8x1.25mm)Offered in traditional single fixed gear, double fixed gear and single fixed & freewheel configurationSupplied with Phil stainless steel lockring (33.5x24tpi left-hand thread Campy compatible)RR1s FX/FX32HB/O 10mmAlyBlk396gRIM120676730303030