Sram Dub British, External Cup Bb, British, 73Mm, 28.99Mm MaxxShield 108 or longer when used

108 or longer when used in a 73mm wide shell

Horizontal Carry and lightweight construction for added comfort

Saving time wherever possible is important to a triathlete and the tri-backup Pro i aids by mounting to the parallel section of your saddle to form a rear saddle hook helping to minimize T1 and T2 times

easy and tool-free shield replacement

rich leather uppers and all-leather linings

Sram Dub British, External Cup Bb, British, 73Mm, 28.99Mm MaxxShield 108 or longer when used* 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 cranks and 68 73mm BSA threaded shells