Description Item Brand Surpass HobbyItem Number 4076Item Name RC car motorMaterial Metal and plasticColor BlackProduct Size Length 76mm diameter 40mm shaft diameter is 5mm length of extended shaft is 18mmProduct Weight About 400gFit For 1 8 brushless rc carsSpecification KV 2250Watts 2800WMax Voltage 18VMax Amps 155ARotor Poles 4IO 2 5AResistance 0 0066Max RPM 50000Diameters 40 42mm with finsConnector 6 5mm goldKV 2000Watts 2800WMax Voltage 21VMax Amps 135ARotor Poles 4IO 2 3AResistance 0 0079Max RPM 50000Diameters 40 42mm with finsConnector 6 5mm goldKV 1700Watts 2800WMax Voltage 23VMax Amps 116ARotor Poles 4IO 1 9AResistance 0 0111Max RPM 50000Diameters 40 42mm with finsConnector 6 5mm goldFeatures 4 Pole 12 Slot Hi torque Motor DesignCNC Machined 6061 T6 Billet Aluminum Heatsink CanHigh Purity Copper Windings Maximizes EfficiencyHigh RPM ABEC5 Oversized BearingsUniversal fit fits all 1 8 brushless cars multi mounting system for M3 or M4 screwsPrecision balanced rotor smoothness for best reliability and maximum RPMStator Super Thin 0 2mm LaminationsRemovable Replaceable RotorPrecision Engineered for Maximum Energy ConversionROAR legal Package included 1x Rocket 4076 1700KV 2000KV 2250KV Brushless Motor