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Shimano 105 BB-5500 Bottom Bracket

The Shimano 105 BB-5500 bottom bracket is a hard-to-find 109.5mm Octalink bottom bracket. The pipe-billet spindle has 9mm deep splines and only fits older Shimano cranks - mostly of the 9 speed variety. The BB comes in two pieces - the drive side cup and then the rest of the bottom bracket. Thread the BB into place and then secure the drive side cup and your good to go - no further adjustment is required.

This is the only Octalink bottom bracket available, so if you need one to service an older drivetrain, it is your only option.


  • BSC-English thread only
  • Octalink splined spindle design
  • Cartridge bearings
  • Alloy driveside cup
  • 109.5mm spindle width
  • 255 grams
  • Made in Japan
  • $38.00
    Sale Price
    Reg Price $49.99
    Item is in stock


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