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  • Shimano BB-UN300 68mm x 115mm Square Taper Bottom Bracket

Shimano BB-UN300 68mm x 115mm Square Taper Bottom Bracket

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          Description
          The Shimano UN300 Square Bottom Bracket is available in many size options at an accessible price making it a perfect option to replace your old worn bottom bracket.
          • Simple and reliable square taper bottom bracket
          • Replaces both BB-UN26 and BB-UN55
          • Sealed cartridge bearings
          • For bicycles equipped with a chain case, select BB-UN300-K