SRAM DUB British 73mm External Cup BB 28.99mm retro Charlie Fast Di2 shifting performance

Fast Di2 shifting performance

CNC machined Steel cups for precision fitment

Maximum tire size is 28C

Depth 25mm Hub Model Tripel Rim Color Black Rim Construction Double wall Rim Drilling 32 Rim External Width 36mm Rim inner width range 28-34

Even lower friction and highly resistant to corrosion

SRAM DUB British 73mm External Cup BB 28.99mm retro Charlie Fast Di2 shifting performanceDUB 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 cranks and 68 73mm BSA threaded shells