Shimano XT SM-BB70 Bottom Bracket
Item Description
Shimano XT SM-BB70 external bearing bottom bracket is ready for demanding use on trails and provides a stiff, smooth-spinning platform for your Hollotech II cranks. Comes with left and right bearing cups, inner sleeve and three 2.5mm spacers. Please note: compatible with English threaded bottom brackets with either 68mm or 73mm wide shells.
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