Features 1、High Torsion: The 550 brushed motor offers an impressive 30% longer armature compared to standard 540 sizes, delivering high torsion. This ensures powerful acceleration and optimal performance for 1/10 scale RC crawler car. 2、Water Resistant Design: Engineered specifically for rugged, dirty, and off road environments, this water resistant motor ensures safe operating in adverse conditions. Its robust construction ensures durability. 3、Cooling Fan: Built in cooling fan, this motor effectively dissipates heat during operating. This feature enhances running time and prolongs the motor's lifespan, reducing the risk of overheating. 4、Powerful: 540 brushed motor with high strength magnets for unmatched brushed motor speed and torsion. Strong magnetic force, low heat generation, high power, low friction, and long service life. 5、540 Brushed Motor: With a shaft diameter of 1/8 inches and ball bearing output side, this motor is designed for smooth and efficient operating. Ideal choice for RC enthusiasts who take their RC car through challenging terrains. Item Type: RC Brushed Motor ESC Set Material: Copper, Iron, Plastic Package List 1 x 540 Brushed Motor 1 x 320A ESC 2 x Connecting Wires