Leopard 60A ESC is high performance 1/10 Scale Brushless Motor Electronic Speed Control. The speed controller is specially designed to offer high power and high efficiency combined with low weight and compact dimensions. 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-300042-01)