Shimano BB-UN300 Bottom Bracket
The Shimano UN300 Square Bottom Bracket is available in many size options at an accessible price, making it a perfect option to replace your old, worn bottom bracket.
Tech Specs:
- Thread In
- Shell Widths: 73mm,68mm
- Spindle Lengths: 107mm,118mm,122.5mm,117.5mm,110mm,113mm,115mm,127.5mm