Classic high-flange track hubs have cog thread of 1.370`x24tpi and Campy compatible lockring. High 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 configuration. Supplied with Phil stainless steel lockring (33.5x24tpi left-hand thread Campy compatible)