Sram DUB British Bottom Bracket Seats & Covers strong and dependable

strong and dependable

where necessary

Foot Nook™ system keeps feet tucked in and out of the cold

Routing: External

Timeless tortoise shell frames and amber lenses make this pair of Seventy Nines a supremely flattering pick that’s fashion-forward yet still approachable

Sram DUB British Bottom Bracket Seats & Covers strong and dependableDUB 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 Specification BB Shell Thread British BB Shell Width 73mm BB Bearing Steel Crank Spindle Diameter 28. 99mm Interface DUB Primary Color Black Vendor Item # 00. 6418. 015. 000 UPC