Skip to main content

6/1/23: Our phones continue to have issues.  We apologize if you have been trying to reach us, at times calls will ring but will not come through to us.  Please reach us via e-mail at info@machineryrowbicycles if you are unable to get through to us and we will get back to you as soon as we can.

  1. Home
  2. Bicycling Catalog
  3. Parts
  4. Bottom Brackets
  5. Shimano

Shimano UN55 Square Taper English Threaded Bottom Bracket

Shimano UN55 Square Taper English Threaded Bottom Bracket
$35.00
Spindle:
Square Taper
Please select options

Details

Shimano's BB-UN55 Square Spindle Bottom Brackets are the unofficial standard for English-threaded cartridge bottom brackets. Quality, value, and durability come together to keep you cranking for many, many miles.

- Fits JIS Square-Taper Cranksets
- Hollow spindle
- Crankarm fixing bolts not included

Reviews