Feature: 1. The waterproof 45A brushless ESC is made of the high‑quality components to ensure efficient operation. 2. With enhanced low pressure protection, overheating protection and throttle signal loss protection. 3. 6061 T6 billet aluminum heat sink processed by CNC can effectively ensure the efficient operation and cooling of the motor. 4. High‑purity copper windings maximize efficiency and accurate design can achieve maximum energy coverage. 5. 4‑pole 12‑slot high‑torque motor is designed with light weight, portable and easy to use. 6. Universal installation, suitable for multiple installation systems with M3 screws for all 1/10 RC brushless cars. Specification: Item Type: 3650 2300KV Brushless Motor + 45A ESC + Heat Sink Combo Material: Aluminum Alloy + Copper + Plastic Product Color: As Pictures Shown Product Weight: Approx. 310g / 10.9oz Compatible: Fit for 1/10 RC Car Motor Parameters: Wattage: 900W Maximum Voltage: <22V Maximum Amperage: 41A KV Value (RPM/volt): 2300KV Maximum Speed: 50000 Diameter: Approx. 36mm / 1.4in Length: Approx. 50mm / 2.0in Shaft Length: Approx. 15mm / 0.6in Shaft Diameter: Approx. 3.175mm / 0.1in Plug Type: 4mm Golden Banana Plug ESC Parameters: Continuous Current: 45A Burst Current: 180A Product Applicable Battery: 2-3S Lithium Battery / 4-9s Nickel-hydrogen Nickel-cadmium Battery (not included) BEC Output: 5.8V / 3A Power Plug: T Plug Male. Package List: 1 x Motor 1 x ESC1 x Motor Radiator 1 x Manual Note: 1. Avoid working temperature exceeding 65°C (150°F).2. Do not touch the motor after use, because the motor may overheat.3. Allow the motor to cool completely between two uses.4. Make sure to use the correct size motor mounting screws.5. Do not over tighten the motor mounting screws.