Upgrade handling on XRAY X12 cars using the XRAY 372186 - Front Coil Springs for 4mm Pin C=1.5-1.7 Gold. Designed for 4mm pin installation, these springs provide a C=1.5-1.7 span so you can tune front stiffness relative to track grip and driver preference.
Created with input from racers and track trials, the spring rate is controlled by wire size and coil count to deliver repeatable performance. The gold finish makes swaps faster and keeps your spring choices clear during setup sessions.
These springs are a direct fit for the XRAY X12 2021 EU and US Spec chassis and require no modifications. They are suitable for carpet and asphalt racing and let you adjust front response to suit different grip scenarios.
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