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

Bottom Bracket Shell I.D.	41
BB/Frame Interface	BB121
BB Shell Width (mm)	121
Spindle Interface Type	SRAM DUB
Defined Color	Black