For MR-03 owners after controlled steering adjustments, the Kyosho MZW416B-02 caster arm kit works with inner tube shock setups to let you alter caster and refine handling. It is aimed at straightforward, repeatable setup work trackside.
The package includes three pairs of arms in 1, 2 and 3 degree configurations so you can test sharper steering or smoother control as needed. These discrete steps make controlled comparison simple during practice.
Manufactured to suit MR-03 mounting points, the arms integrate without major changes to your chassis. That keeps suspension geometry consistent while you evaluate the effect of caster adjustments.
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