The upgrade waterproof 3650 4300KV brushless motor with 60A ESC combo is designed to provide both quality and performance at an affordable price. Waterproof function motor and ESC let your car challenge the muddy road. Providing much convenience for your 1/10 RC car truck. PS：Click the link to watch the product video: https://www.youtube.com/embed/PZ3c92A6isM Features: 4 pole 12 slot high-torque motor design 3.175mm shaft diameter High purity copper windings maximizes efficiency engineered for maximum energy conversion balanced rotor,smoothness for best reliability and maximum RPM Mutiple protection features: Low voltage cut-off protection, over-heat protection, throttle signal loss protection Bulit-in 5.5V/3A BEC Suit for 1/10 scale RC car Motor Specifications: Brand name: GoolRC Watts: 900W Max voltage: < 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 ESC Specifications: Brand name: GoolRC Item name: waterproof ESC Continue current: 60A Burst current: 320A Battery: 2-3S Li-Po / 4-9S Ni-Mh BEC output: 5.5V / 3A Power supply plugs: T plug male Motor plugs: 4mm banana plug female Dimension: 50 * 35 * 34mm / 2.0 * 1.4 * 1.3in (without cables) Package Information: Package size: 10.5 * 8 * 6cm / 4.1 * 3.2 * 2.4in Package weight: 302g / 10.6oz Gift box package Package List: 1 * GoolRC 3650 4300KV Motor 1 * GoolRC Waterproof 60A Brushless ESC