Shimano Y3F898030 FH-MT400-B Complete Freewheel Body :: £21.30 :: Components. :: Freehub bodies - 11 Speed :: For Hand built bike wheels & all your cycling needs!
HB-MT400-B
Shimano (SHIMANO) repair parts FH-MT400-B hub axle assembly 148mm From Japan 4550170516123 | eBay
Shimano axle parts | Mountain Bike Reviews Forum
Shimano FH-MT400B Freewheel Body Unit - Level Nine Sports