Freehub for Bitex road hubs which use the 54-point of engagement system (most mountain bike hubs). This freehub fits Bitex hubs which have drive rings with 27 teeth.
Common hub models this will fit:
MTR
BX211R
BX212R
BX108R
BX315R
....plus others, please ask if you are not sure.
This is a Sram XD fitting freehub.