This is a replacement spring specified for use with the YRX12 2019 kingpin and coil spring front suspension on 1/10 scale RC cars. The spring wire diameter is 0.50mm and the pack contains 2 pcs. It is an RC-scale accessory intended for fine control of front-end steering preload and feel when the vehicle uses a kingpin-based front suspension.
In setup and tuning the spring changes the initial preload on the kingpin assembly and can alter steering response in small increments. When replacing, confirm the suspension specification matches YRX12 2019 kingpin and coil spring layout and install the spring with the same orientation as the original to preserve intended preload characteristics.
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