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 Shimano BB-UN55 Cartridge Bottom Bracket

  Item # SH-BBUN55
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Item # SH-BBUN55
MSRP: $29.99
Nashbar: $29.99
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Shimano BB-UN55 Cartridge Bottom Bracket

The UN55 bottom bracket is an improvement over the tried and true UN54. The sealed cartridge unit makes a great replacement part for hybrids, road bikes and older mountain bikes. The sealed cartridge bearings lock out contaminants like water and dirt, helping this bottom bracket last longer.

  • Maintenance-free sealed cartridge bearings with high-efficiency rubber seals
  • Square taper chromoly spindle

Shimano BB-UN55 Cartridge Bottom Bracket

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Shimano BB-UN55 Cartridge Bottom Bracket Shimano BB-UN55 Cartridge Bottom Bracket
Nashbar: $29.99
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