XRAY 4S Spring Set Progressive C=2.3-2.6 (2) RC Fan which in turn makes your

which in turn makes your car faster

3 Rechargeable Batteries

dust-proof and shock-resistant design) and capacitor module save space and make the wiring simple and neat

Extremely light weight

XRAY 4S Spring Set Progressive C=2.3-2.6 (2) RC Fan which in turn makes yourThe main advantage and benefit of progressive springs is that as the car initially enters the corner they work like a C2. 3 spring to provide maximum traction. At the same time, when the chassis begins to roll, in the middle of the corner, the spring rate progressively increases until it works like a C2. 6 which allows the car to maintain maximum cornering speed. The 4S springs, like all the other XRAY springs, are manually measured, selected and