The XRAY 308264 Progressive 4S Spring Set is made to improve your RC car's handling by giving a variable response through turns. Built for SLP shocks and measuring 20mm in length, these springs focus on maintaining traction and controlled speed while cornering.
These 4S springs use a progressive rate that behaves like a C2.5 at initial compression, helping the car bite into the turn. As the chassis rolls deeper, the rate ramps up toward a C2.8 feeling, keeping corner speed high without losing stability.
Each pair of XRAY 4S springs is hand measured and matched to guarantee consistent length and damping behavior. That selection process reduces setup variability and helps racers tune more predictably.
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