The set includes a 3650 3900kv motor, a 60A Brushless ESC and a 25kg digital servo, which is perfectly fit for the 1/10 RC car. Made of high-quality components to achieve reliable power, this combo set is conductive to provide a stable and powerful driving to your car. It is a good choice for RC hobbyists, especially for DIY enthusiasts.<br/>Features:<br />Perfectly fit for 1/10 scale RC car.<br />Made of high-quality components to achieve reliable power.<br />High purity copper windings and high-power output raise efficiency.<br />Waterproof characteristic exists in all parts of this set, which allows it eminently practical, strong and durable.High torque servo provides accurate movement.<br />The ESC with built-in 5.8V/3A BEC features fast response to throttle input and accurate throttle linearity.<br />Multiple protection functions including low voltage cut-off protection for lithium or nickel battery, over-heat protection, throttle signal loss protection and motor blocked protection.<br />An economical combo comes with a 3650 3900kv motor, a 60A ESC and a 25kg digital servo is more convenient for DIY.<br/>Motor Specifications:<br />Brand: GoolRC<br />Watts: 900W<br />Max voltage: &lt;12V<br />Max Amps: 75A<br />KV(RPM/Volt): 3900KV<br />Max RPM: 50000<br />Diameter: 36mm<br />Length: 50mm<br />Shaft length: 15mm<br />Shaft diameter: 3.175mm<br />Plug type: 4mm golden banana plug<br/>ESC Specifications:<br />Brand: GoolRC<br />Item name: waterproof ESC<br />Continue current: 60A<br />Burst current: 320A<br />Battery: 2-3S Li-Po / 4-9S Ni-Mh Ni-Cd<br />BEC output: 5.8V / 3A<br />Power supply plugs: T plug male<br />Motor plugs: 4mm banana plug female<br />Dimension: 50 * 35 * 34mm / 2.0 * 1.4 * 1.3in (without cables)<br/>Servo Specifications:<br />Motor: Coreless motor<br />Mechanical Angle: 120° <br />Bearing: 2BB<br />Dead band: 1μs default<br />Waterproof: Yes<br />Operating Voltage: DC6.0~7.4V<br />Working frequency: 1500μs/330hz<br />Operating Speed (6.0V): 0.16sec/60 degrees <br />Operating Speed (7.4V): 0.14sec/60 degrees<br />Stall Torque (6.0V): 25kg.cm (239.05oz/in)<br />Stall Torque (7.4V): 27kg.cm (294.75oz/in)<br />Item Size: 40 * 39 * 20mm <br />Weight: 76g <br />Connector Wire Length: JR 300mm<br/>Package size: 10.5 * 8 * 6cm / 4.1 * 3.2 * 2.4in<br />Package weight: 380g<br />Gift box package<br/>Note:<br />* There could be a few deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding.<br/>Package List:<br />1 * GoolRC 3650 3900KV Motor<br />1 * GoolRC Waterproof 60A Brushless ESC<br />1 * GoolRC 25kg Servo<br />1 * 25T Adjustable Metal Servo Arm