The SRAM DUB BB30 73mm bottom bracket cup is compatible with most current bottom brackets.
The SRAM DUB BB386 bottom bracket cup has a simple job: connect your cranks and protect the smooth, long-lasting application of power to your drivetrain.
The SRAM DUB bottom bracket has been created to have a much better seal, last longer, reduce weight and ensure that all bottom bracket systems have the same performance, regardless of their size.
Sram Force eTap AXS Internal Gear Box