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Brushless power from the leader in aftermarket upgrades, the Sidewinder 4 builds upon Castle's most popular platform, the SIDEWINDER 1:10 SCALE SERIES. The Sidewinder line of ESCs are our Sport-Class Surface Speed Controllers. They're designed to withstand the most abusive environments while keeping your ride moving fast and cool. They are sensorless and have loads of Castle Power! CRYO-DRIVE TECHNOLOGY combines cutting-edge hardware and software advancements to significantly increase thermal performance by reducing the amount of time the ESC’s electrical components spend generating heat. Your setup will be able to handle higher gear ratios, in heavier vehicles, with longer runs COOLER T
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