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YST Threadless Bottom Bracket


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Product Details

YST BB993 Threadless Bottom Bracket

A solution to stripped threads

Instead of threading onto the threads of the frame's bottom bracket shell, the YST BB993's steel cups thread on to the steel body of the cartridge sealed bottom bracket unit.

  • The cups are tapered to centre themselves in the bottom bracket shell.
  • Shimano-compatible square-taper axle (not splined).
  • 68mm shell width.
  • 350g.