The Kyosho UM605B Diff Gear Set gives ULTIMA Series owners a reliable way to restore precise gear action. Designed to resist wear and keep rotational losses low, it helps deliver consistent handling across mixed surfaces.
With careful attention to tooth geometry and material resilience, the Kyosho UM605B is built to stand up to regular club use and weekend bashing. It is a solid choice when replacing worn components or improving drivetrain consistency.
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