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 (8×1.25mm). 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)