SRAM Bottom Bracket - DUB - English/BSA 68/73mm - MTB Boost 55mm Chainline - Black closeout It features X-Range gearing technology

It features X-Range gearing technology and a 10-tooth small cog to progress fluidly and efficiently

Dip your chain in the wax

and near silent runningFor use with double chainset only5

Solid 7075 Machined Aluminum

Used by exper riders worldwide

SRAM Bottom Bracket - DUB - English/BSA 68/73mm - MTB Boost 55mm Chainline - Black closeout It features X-Range gearing technologyThe SRAM DUB bottom bracket series has a simple job to connect crankarms and protect the smooth, long lasting application of power to the drivetrain. SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility. Designed for use with SRAM Boost cranksets with 55mm chainlines Gutter Seal Technology drastically improves sealing against the elements Sealed cartridge bearings One oversized