- Classic high-flange Track hubs have cog thread of 1.370" x 24tpi - High tensile strength bolt axles have stainless steel bolts and washers (M8x1.25mm) - Supplied with Phil stainless steel lockring (33.5mm x 24tpi left-hand thread - Campagnolo compatible) - Choose single side fixed or flip-flop fixed and freewheel threaded