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BB-UN55 bottom bracket British thread 68 - 118 mm 702270

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Shimano BB-UN55 Bottom Bracket British Thread

The Shimano BB-UN55 Bottom Bracket British Thread is a popular sealed cartridge bottom bracket with a lightweight hollow spindle. Attaching your bike to the crankset, this bottom bracket ensures your crankarm rotates like a dream. Plus, the sealed design keeps out all the nasty stuff like mud, dirt and water, which means it`ll keep working perfectly for even longer.

Shimano BB-UN55 Bottom Bracket British Thread Extra Info

  • Square tapered spindle
  • The slim body allows clearance for cable routing under the bottom bracket
  • Quick and easy to install without the need for adjustment