White Industries External BSA Bottom Bracket

White Industries external BSA style bottom brackets are made with U.S. sourced 6061-T6 aluminum and feature Enduro stainless steel bearings or Enduro XD-15 ceramic bearings where available.  

Specifications: 

• 1.37” x 24 TPI threads (“BSA” threads)
• Designed to be used on 68mm or 73mm wide bottom bracket shells
• Compatibility:
• 30mm: White Industries M/A/R/G cranks as well as other brands of 30mm spindle cranks
• 29mm: SRAM DUB cranks
• 24mm: Shimano HollowTech II cranks
• Weight/pr (with bearings and seals)
  • 30mm: 83g
  • 29mm: 90g
  • 24mm: 84g

Please refer to the MR30 Crank and Bottom Bracket Compatibility Chart for information pertaining to use with White Industries Crankarms.

Photo Credit: White Industries