SRAM DUB BB30 Bottom Bracket – 68/73mm

The SRAM DUB BB30 Bottom Bracket modernizes the classic BB30 interface by pairing it with SRAM’s oversized DUB spindle, delivering improved durability, simplified compatibility, and better long-term performance.

Designed for both road and mountain applications, this bottom bracket offers greater bearing durability than previous BB30 and GXP designs, addressing common wear and noise issues associated with older systems. The DUB platform streamlines crank compatibility while maintaining stiffness and efficient power transfer.

This unit includes a 3mm spacer to support multiple drivetrain configurations, making it a reliable option for new builds or service replacements where BB30 frames meet modern DUB cranksets.

Why we like it at Go Grava:
Because DUB fixes the pain points of older BB standards—fewer compatibility headaches and longer service life.

Key Features

• One oversized DUB spindle works across multiple bottom bracket standards

• Compatible with MTB and Road cranksets

• Improved bearing durability over legacy BB30/GXP systems

• Includes 3mm spacer for proper setup

• Aluminum cups for strength and longevity

Installation Note

• Requires Park Tool BBT-79 Bottom Bracket Tool
  (JBI part number 610148)

Specifications

• Brand: SRAM

• Bottom Bracket Type: BB30

• Shell Width: 68 / 73mm

• Interface: BB30

• Spindle Type: DUB

• Cup Material: Aluminum

• Color: Black

A smart upgrade for BB30 frames—bringing modern DUB reliability and compatibility to a proven bottom bracket standard.