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Shimano BB-UN300 Bottom Bracket British Thread

Shimano BB-UN300 Bottom Bracket British Thread
In Stock
Pre Order
Out of Stock

 Genuine Shimano replacement part.



  • A good quality bottom bracket for traditional chainsets
  • Super-accurate bearings for smooth operation and improved durability
  • Durable, hard-wearing sealed cartridge bottom bracket with square tapered spindle fitting
  • 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
  • SKU: PSASM0076
Size: 73-113mm
  • 73-113mm
  • 73-118mm
  • 73-122mm
- 1 +

This selection is Out of Stock

Pre order due date:

- 1 +
Shimano BB-UN300 Bottom Bracket British Thread


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