SRAM DUB PressFit Bottom Bracket - BB121 121mm MTB Black Model=XMC 1200 Spline 30 Rear Wheel 5" Valve Presta Tire Type

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SRAM DUB PressFit Bottom Bracket - BB121 121mm MTB Black Model=XMC 1200 Spline 30 Rear Wheel 5" Valve Presta Tire TypeSRAM DUB PressFit Bottom Bracket BB121 121mm MTB Black. 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