The SRAM DUB bottom bracket series has a simple jobconnect your crankarms and protect the smooth, long-lasting application of power to your drivetrain.
This particular bottom bracket is designed for use with Cannondale PF30Ai frames with 83mm BB shell width.

• For installation of SRAM DUB cranks into Cannondale PF30A frames with 83mm BB shell width
• Asymetrical fit is Cannondale specific
• DUB offers one oversized spindle to work across all bottom bracket standards
• Sealed cartridge bearings
• Greater bearing durability and easy installation
• Aluminum press-fit cups are lightweight