This is a replacement spring specified for the YRX12 2019 kingpin and coil spring front suspension on 1/10 scale RC cars. The spring wire diameter measures 0.50mm and the pack contains 2 pcs. It is intended as an RC-scale accessory to refine front-end steering preload and initial feel when running a kingpin-based suspension.
In setup the spring alters the kingpin assembly's initial preload, which can produce measurable but small shifts in steering response. Before fitting, ensure the suspension layout matches YRX12 2019 kingpin and coil spring geometry and install the spring with the same orientation as the original to retain intended preload characteristics.
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