DUB PF121, Press Fit BB, BB121, Spindle: 28.99mm, Width: 121mm, Diameter: 41mm

* 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