1、High Purity Copper Winding: This RC car gearbox motor mount boasts high purity copper winding, ensuring maximum efficiency. With a high strength magnet, low friction, and low noise level, it can work for extended periods, and the external carbon brush is replaceable. 2、Accurate Design for Optimal Energy Conversion: Featuring a precisely balanced rotor, this motor mount ensures a stable transition of energy for optimal conversion. Its balance also enhances reliability and maximum speed, making it ideal for high performance racing. 3、Powerful 540 Brushed Motor: With a precise circuit design, this 540 brushed motor boasts high anti interference performance, twice the bearing power, low heat output, and high power. Its dual directional bearing and powerful magnet ensure stable performance. 4、Sensitive Power Distribution: With a sensitive power distribution system and the ability to adjust motor rotation speed, this motor mount offers a stable performance. It provides a stable vehicle start up, reduces shaking, and prevents the car from stalling during start up. 5、Convenient Installation: Easily installed and removed, this 1/3 reduction planetary gearbox effectively protects the gearbox motor's body, and increasing its high torque output. Item Type: RC Car Gearbox Motor Mount Material: Iron, copper Weight: Approx. 276g/9.7oz 540 Brushed Motor: Operating Voltage: 7.2 to 7.4V Maximum Voltage: 12V Length: Approx. 53mm/2.1in (without shaft) Diameter: Approx. 36mm/1.4in Shaft Length: Approx. 12.5mm/0.5in Axle Diameter: Approx. 3.175mm/0.1in 1/3 Reduction Planetary Gear Box: Deceleration Ratio: 1:4.2 Total Diameter: Approx. 36mm/1.4in Total Length: Approx. 44.5mm/1.8in Shaft Length: Approx. 15mm/0.6in Axle Diameter: Approx. 3.175mm/0.1in 15T Gear: Diameter: Approx. 8.3mm/0.3in Length: Approx. 10mm/0.4in Aperture: Approx. 3.175mm/0.1in Application: Suitable for Tamiya 1/14 tractors 1/10 off road crawler car DIY modifications 1 x 540 Brushed Motor 1 x 1/3 Reduction Planetary Gear Box 1 x 15T Gear 2 x Gasket 2 x Machine Screw