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Wheel Shop WTB STi30/Shimano HB-MT400-B/FH-MT400-B 27.5-inch Boost Front - www.trailheadcyclery.com
Shimano Y3F898030 FH-MT400-B Complete Freewheel Body :: £21.30 :: Components. :: Freehub bodies - 11 Speed :: For Hand built bike wheels & all your cycling needs!
Shimano upgrades entry-level components - BikeBiz
Freehub body 10/11s FH-MT400-B8/9/10s FH-MT400-B shimano