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Product Image Shimano BB-5500 version 1 octolink bottom bracket

Shimano BB-5500 version 1 octolink bottom bracket


 Shimano 105 octalink bottom bracket. This is version 1 and will not work with version 2 octalink cranksets. If in doubt ask me.
the 110/109.5mm BB is for double chainsets and the 118mm is for triple chainset
These fit the shimano 9 speed era chainset such as FC-55500/6500/7700 105 Ultegra or Dura Ace 9 speed.
  • Splined bottom bracket designed for use with Shimano road Octalink crankset
  • Oversize BB spindle - large 22 mm diameter chrome-moly hollow pipe billet spindle reduces weight, increases strength and rigidity
  • Octalink splined axle/crank arm interface - results in a more rigid crank assembly compared to square tapered spindle
  • Maintenance-free sealed cartridge design prevents corrosion and is easy to install
  • Average weight 250 g