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Shimano Bottom Bracket ? BB UN300 (Square Taper, Threaded) 73mm


The Shimano BB-UN300 Square Taper bottom bracket offers quality and smooth performance. It also offers better chain line stability with its chain line stabilizer.

Availability: In stock


  • Series: Shimano
  • Type: Square Taper BB
  • Size: 122.5*73mm


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