Python RXF Combo Overview. Furitek Python RXF 40A/70A Integrated Brushless ESC and Receiver Combo with Kosmik Transmitter. The perfect 2-in-1 plug-and-play solution for your 1/24 and 1/18 micro rock crawlers where space is extremely limited! Features a Big BEC for power-hungry servos, FOC (Field-Orientated control technology) with super slow and ridiculously smooth throttle control and […]