The Kyosho MZW415B Aluminium Upper Arm Set is designed to sharpen the response of your Mini-Z MR-03. Machined aluminium delivers a more direct spring action, helping control and stability during faster laps and quick direction changes.
Compared with stock plastic parts, these aluminium upper arms add stiffness that translates to crisper steering input and improved suspension behaviour. The result is finer control for club racing or serious hobby driving.
Fitting the Kyosho MZW415B is straightforward and can be completed with basic RC maintenance tools. After installation you should notice tighter cornering and steadier traction on a variety of surfaces.
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