Leopard 60amp 9t 4370kv & program card esc specs: controls, leopard 60a esc v2 fwd/brk or fwd/bra/rev input power (cells) 2-3s lipo,4-8s nicd/nimh on resistance, brushless 0. 001 ohms per phase continuous/burst current 60amp/90amp linear bec 5v 2amp input power (cells) 2s lipo 3s lipo motor limits on road:?9. 0t off road:?10. 0t on road:?10. 0t off road:?13. 0t thermal overload protection yes dimensions(l*w*h) 51. 6*30*27. 4mm(2. 03*1. 18*1. 08in) weight(with wires) 78g(2. 75oz) (sk-300042-02)