For competitive on-track tuning, the XRAY 308166 Progressive XLP Spring Set for the XRAY X4F 2023 offers a progressive C=2.6-2.9 rate to sharpen handling and improve vehicle behaviour through varying loads.
A progressive spring increases resistance as it compresses, giving a softer initial response and firmer support under heavier compression. That trade off helps manage body roll and keeps the car composed under acceleration.
These springs are tailored to the XRAY X4F 2023 chassis for an easy replacement. They suit drivers wanting quicker setup changes without altering major suspension components.
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