Shimano Bottom Bracket BB-UN55


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A good quality bottom bracket for Shimano cranksets with sealed bearings for smooth movement and improved strength. The BB-UN55 is a durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting.

  • Lightweight hollow spindle
  • Maintenance-free sealed cartridge bearing assembly keeps out dirt, mud, and water for long bearing life
  • Fast and easy installation without adjustment
  • Narrow body allows clearance for cable routing under the bottom bracket
  • Weight: 300g
  • Interface: Square taper, English Thread


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Shipping information

This product is: A regular item

Regular Shipping - This is a small product that can be easily shipped using standard AusPost satchels.

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