12435 Brushless motor and 30A brushless ESC with 2kg servo are specially designed for RC crawler vehicles. 2ESC using 32-bit microprocessor, more powerful, stable performance. 3Better throttle handle, faster acceleration, more violence, better linearity, more responsive. 4Powerful throttle and brake functions, such as throttle acceleration, throttle curve and throttle flexibility, etc., can be adjusted to better meet different needs. 5Special desifned for DIY RC model, wonderful upgrade parts for RC car.Condition: 100% Brand New Item Type: RC Parts Material: Plastic + Metal Color: Black + Blue Optional Type: 30A Brushless ESC,30A+2435-3900kv,30A+2435-3900kv+2kg Servo 30A Brushless ESC: Current: 30A Maximum Current: 120A BEC: Yes Lipo: 2s Programming: Yes BEC Output: 6V / 2A PWM: 8-24 KHZ Size: Approx. 33 x 24 x 15mm / 1.3 x 0.9 x 0.6in Single ESC: Suitable for1 / 18, 1 / 16,1 / 14 RC Car 2435 Brushless Motor: Speed: 3900KV Maximum Current: 24A Maximum Wattage: 300W MaximumSpeed: 60000 Diameter: Approx. 24mm / 0.9in Length: Approx. 35mm / 1.4in Shaft Diameter: Approx. 2.3mm / 0.1in Shaft Length: Approx. 12mm / 0.5in Plug Type: 3.5mm M0200 2Kg Servo: Torque: 3.0kg-cm / 4.8V;3.5 kg-cm /6.0 volts Speed: 0.13s / 60 degrees/ 4.8V; 0.12 S / 60 degrees / 7.4 V Size: Approx. 31 x 17 x 28.5mm / 1.2 x 0.7 x 1.1in Suitable for 1/16 remote control vehicle upgrade power set, brush car upgrade brushless.1 x 30A Brushless ESC1 x Manual1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.