Made of High Quality Meterial, Stronger And More Durable, Improve The Appearance Easy to use,Easy to replace Suitable for 12428 12429 12423 FY-03 1/12 RC Car Motor Specifications: : 900W Max voltage: Less than 12V Max Amps: 75A KV(RPM/Volt): 4300KV Max RPM: 50000 Diameter: 36mm Length: 50mm Shaft length: 15mm Shaft diameter: 3.175mm Plug type: 4mm golden banana plug Servo Specifications: Voltage: 4.8V~6V : 3.35kg cm/4.8V; 4.52kg.cm/6V Speed: 0.12s/60/4.8V; 0.10S/60/6V Accuracy: 1s Angle: 180 degrees Weight: 25.65g Motor: DC motor Gear: Copper teeth Connector :JR Size: 35.5x15x30mm Colour:As Shown Material:composite material Package Contents: 1 x 120A Brushless ESC 1 x Brushless Motor 1 x 2.4G 3CH Remote Control 1 x Receiver 1 x Brushless Servo 1 x Metal Servo Arm 1 x Motor Heatsink Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.