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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

BENEFIT

SHIMANO quality/performance cartridge bearing square bottom bracket

BENEFIT

Better chainline stability with chain line stabilizer

BENEFIT

3 structures available

BENEFIT

Standard, E-type, chain case options

BENEFIT

Adapter material: Aluminum

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