The set includes a S2440 4000KV brushless motor, a 35A ESC and a 3.5kg servo, which is perfectly fit for the 1/16 RC car. What you needed is all included in the combo, specially for RC car DIY hobbies.<br><br>Features:<br>High purity copper windings maximizes efficiency<br>Precision engineered for maximum energy conversion<br>Precision balanced rotor, smoothness for best reliability and maximum RPM<br>Low heat production, long lifetime, strong overload protection<br>Super smooth and accurate throttle linearity<br>Mutiple protection features: Low voltage cut-off protection for lithium or nickel battery, Over-heat protection, Throttle signal loss protection, Motor blocked protection<br>High precision gear<br>Suit for 1/10 scale RC car<br><br>Motor Specifications:<br>KV(RPM/Volt): 4000KV<br>RPM: 50000<br>Max Current: 32A<br>Max voltage: &lt;12.6V<br>Can Diameter: 24mm<br>Can Length: 40mm<br>Shaft Diameter: 2.3mm<br>Shaft Length: 12mm<br>Connector: 3.5mm golden banana plug<br>Item weight: 66g<br><br>ESC Specifications:<br>Constant current: 35A<br>Burst current: 120A / 10sec<br>Battery: 2-3S Li-Po / 4-6S Ni-Mh<br>BEC output: 5V / 2A<br>Power supply plugs: T plug male<br>Motor plugs: 3.5mm banana plug female<br>Dimension: 37 * 26 * 20mm (without cables)<br><br>Servo Specifications:<br>Operating Voltage: 4.8V-6.0V<br>Operating Speed (4.8V): 0.14sec/60&deg; at no load<br>Operating Speed (6.0V): 0.12sec/60&deg; at no load<br>Stall Torque (4.8V): 3.0kg.cm<br>Stall Torque (6.0V): 3.5kg.cm<br>Item size: 55 * 20 * 38mm (L * W * H)<br><br>Package Information:<br>Package size: 10.5 * 8 * 6.3cm / 4.1 * 3.1 * 2.5in<br>Package weight: 178g / 6.3oz<br>Brand gift box package<br><br>Package List:<br>1 * GoolRC S2440 4000KV Motor<br>1 * GoolRC S-35A ESC<br>1 * GoolRC 3.5kg Servo