The 3Racing MZII-003 ball differential shaft is a focused upgrade for Mini-Z MR-02 owners aiming to tighten steering response. Designed for MR-02 MM and RM chassis, it improves predictability through corners and during power application.
Manufactured to consistent tolerances, the 3Racing MZII-003 reduces drivetrain backlash and helps maintain smooth differential action under load. It is a practical part for hobbyists refining lap-to-lap consistency.
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