Halo spin doctor 20mm adaptorsspare adaptor cones to allow spin doctor front hub to change from 9x100mm spaced qr fitting to 20x110mm through axle type use features 20mm t axle cones blk cnc alloy pr note these are replacement spares as the spin doctor hub inc these items when purchased new note there are 2 types earlier versions have offset spaced bearing on disc side and therefore require 2 different size cones later hub models mid 2006 onwards have equal spacing left and right