Keep your rear wheel spinning smoothly with a genuine Sun Ringle SRC/SRX freehub body. This direct factory replacement lets you easily refresh a worn-out hub or swap driver standards when changing drivetrains. Built to handle demanding trail, enduro, and E-MTB torque, it comes in Shimano HG, SRAM XD, and Microspline options for crisp engagement, minimal drag, and perfect cassette compatibility.