Freehub body H type (E440), Micro Spline, alloy 4-pawls, w/washer 190883, w/water seal 272922, w/oil seal 270048, 2xNBK bearings for hub D902SB, OEM – IMPORTANT NOTE: In order to convert hub to Microspline you will have to buy also compatible axle – items: 220155 or 220157