Built for XT4 chassis tuning, the XRAY 368492 Rear Big Bore Conical Spring Set 67mm brings consistent spring action and reliable damping control. The conical profile helps tune weight transfer and mid-corner balance.
Springs in this set are individually measured and paired to ensure equal length and matching damping feel. That consistency reduces handling surprises when pushing the car hard.
Two laser-engraved dots mark the spring firmness so you can quickly select the right set when testing different setups. The markings make pit-side changes faster during practice runs.
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