Replacement axles and axle spares for the Halo MT Supadrive hub.The Halo MT hub can be run as a QR 9x135mm set up or 12 x142mm through axle.Utilising heat treated Cro-mo Steel the MT Supadrive axle reduces flex and increases power transfer, and is available in Shimano HG or Sram XD variations (to match your applicable cassette).