Refine front-end handling on XRAY X12 models by fitting the XRAY 372186 - Front Coil Springs for 4mm Pin C=1.5-1.7 Gold. These gold springs are made for 4mm pin setups and provide a C=1.5-1.7 range so you can tune front compliance and turn-in behavior.
The springs come from iterative testing and racer input, with stiffness determined by wire diameter and coil count to keep rates predictable. The gold finish aids quick identification during race day setup changes.
As a direct fit for the XRAY X12 2021 EU and US Spec chassis, these springs install without alteration. They perform well on both carpet and asphalt, offering front-end tuning options across common racing surfaces.
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