Chris King DUB BB Conversion Kit #1
As crank designs evolve, Chris King has simplified bottom bracket compatibility with the DUB BB Conversion Kit #1. This kit replaces the extensive list of previous conversion kits with a single, easy-to-use solution that works across multiple DUB crank and bottom bracket fitments.
Compatible with all DUB mountain fitments and DUB road fitments with ThreadFit T47 bottom brackets, this kit ensures precise fit and smooth function. Designed for the common DUB 28.99mm spindle, it accommodates the latest crank standards while maintaining Chris King’s legendary durability and performance.
Fitment Notes:
For DUB mountain cranks with a 68mm bottom bracket shell, two 2.5mm cup spacers are required.
For DUB Super Boost+ cranks, one additional spindle spacer kit is needed.
This simple, streamlined solution keeps your drivetrain efficient, reliable, and compatible with the evolving DUB ecosystem.
Key Features
Compatibility: All DUB mountain fitments; DUB road fitments with ThreadFit T47 BB
Spindle Size: Common 28.99mm DUB spindle
Fitment Notes: 68mm BB shells require two 2.5mm cup spacers; Super Boost+ cranks require one spindle spacer kit
Ease of Use: Replaces multiple conversion kits with a single, simple solution
Performance: Maintains precise fit, smooth pedaling, and long-term reliability

