Prowheel BSA Threaded Bottom Bracket. Shell width 68 / 73mm. CNC machined forged aluminium with plastic inner tube.
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BSA 68/73mm 29mm DUB Axle Threaded Bottom Bracket - SKF or Ceramic Bearings
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BSA 68/73mm 30mm Axle Threaded Bottom Bracket - SKF or Ceramic Bearings
