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Shimano UN55 Bottom Bracket 73-113mm

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The BB-UN55 bottom bracket British thread 73-113 mm is a quality bottom bracket designed for traditional chainsets. Its super-accurate bearings mean you're guaranteed a smooth operation and improved durability.

  • 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
Product Code: R6614202

About Shimano

 

Shimano manufactures a wide range of components for all types of bikes and riders and are best known for their groupsets, wheels and shoes. The innovative company’s components, such as the Di2 electrical components are used in high end road bikes. 

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