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US Customers: For information about the preliminary approval of the settlement in In re Shimano Crankset Litigation, please click here

SQUARE TYPE BOTTOM BRACKET
BB-UN300-E
SQUARE TYPE BOTTOM BRACKET
BB-UN300-E

FEATURE

・SHIMANO quality/performance cartridge bearing square bottom bracket

・Better chainline stability with chain line stabilizer

・3 structures available

・Standard, E-type, chain case options

・Adapter material: Aluminum

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