Shimano Saint FH-M828, XT FH-M788, SLX FH-M678 Freehub Body Unit 12mm Thru-axle freehub body and freehub body washer Fits Shimano FH-M988, FH-M828, FH-M788, WH-MT68, FH-M678, FH-M618 hubs Uses Shimano TL-FH15 (15mm hex key) to remove Shimano Freehub Bodies