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.
Item No. » SH-BBUN55
Nashbar No price available.1 or more: null
Sorry, this item is Out of Stock. You can still order it and we will ship it to you as soon as it comes in.