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Problem Solvers Bushnell Eccentric Lightweight Bottom Bracket - 68mm x 54mm, Black

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The Problem Solvers Bushnell Eccentric Bottom Bracket is the industry leading design for chain tension adjustment on tandem and dedicated single speed bikes equipped with eccentric bottom bracket shells. The lightweight version features additional machining and drilling of the alloy body to reduce weight.

  • Accepts English threaded bottom bracket cups (1.37 X 24 tpi)
  • Lightweight, cut-out body design made from aluminum
  • Fits BB shells from 53.8 - 54mm I.D.