The SRAM DUB bottom bracket connects crankarms to your frame and protects the drivetrain. With gutter seal technology, the bottom bracket's bearings are protected, lightweight, and long-lasting.

SRAM engineered the oversized DUB spindle to work across every bottom bracket standard, simplifying crankarm compatibility.

This bottom bracket is a BB30 68/73, meaning it's compatible with both 68mm and 73mm bottom bracket sizes. 

Specs:

• Spindle Interface Type: SRAM DUB
• BB Shell Width (mm): 68 , 73
• Bottom Bracket Shell I.D.: 43
• BB/Frame Interface: BB30