Whether you're swapping drivetrains on your trusty steed or upgrading an old freehub that's no longer performing as you'd like, the HED Freehub Body offers a reliable replacement for the freehub body of your HED 545 hub. The 5-pawl driver is impressively durable, which means more time riding and less time sidelining your bike in the garage. Three versions offer compatibility for a wide array of drivetrains, regardless if you're running Shimano, SRAM, or Campy on your favorite bike.