DUB PF121

• DUB™ technology features a better engineered bottom bracket and a new spindle design for a more uniform approach to bottom bracket fitment, better sealing against contamination, and a new measure of durability
  
• For use with all SRAM DUB fatbike cranks in PF121 BB shells
  
• SRAM Model ID: BB-DUB-PF-A1

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