Shimano BB-UN54/55 Square Taper Bottom Bracket

Item: 50-6859
The price of the product might be updated based on your selection
  • 68X110
  • 68 X 113
    68 X 113
  • 68 X 122.5
    68 X 122.5
  • 73 X 113
    73 X 113
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The Shimano BB-UN54/55 Square Taper bicycle bottom bracket gives you reliable strength for square tapered cranksets.
  • Sealed cartridge design offers smooth performance, longer life and less maintenance
  • Features a hollow spindle with a plastic cup on the nondrive side
  • Spindle Interface Type: Square Taper JIS
  • Only compatible with other components using a square taper system
  • 73x113mm BB ships with nylon retaining sleeve

Learn More:

Check out our Introduction to Shimano.

Check out our Basic Guide: Road Cycling.

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