Check the listing for details. SRAM DUB Sealed Cartridge Bearing BSA Bottom Bracket | E-Type SuperBoost+ Cranks. Condition: New. Listed at 29.87 USD. The 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.Gutter Seal Technology drastically improves sealing against the elements. Sealed cartridge bearings. One oversized spindle to work across every bottom bracket standard. Significantly lighter than GXP system. Item Specifications: BB Shell Width (mm), 73mm, BB/Frame Interface, English, Bottom Bracket Shell I.D., 1.37, Defined Color, Black, Spindle Interface Type, SRAM DUB, SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us