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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.
Press Fit - BB89.5/BB92, 89/92mm
BB30 - 42mm x 68/73mm
Threaded - English/BSA, 68/73mm