Shimano UN55 Square Taper Bottom Bracket 68mm x 110mm


The Shimano BB-UN55 bottom bracket is one of the most popular choices for touring and mountain bikes using a square taper crank. It’s simplicity and durability means easy servicing, and long life.

  • Hollow spindle
  • 68mm English
  • 110mm spindle length
  • 25% more durable than previous UN54 model
  • Crank bolts not included

2 in stock

SKU: EBBUN55B10 Categories: , ,