Hobbywing Quicrun 10BL 120A ESC & Motor Combo The Quicrun 10BL120 G2 Sensorless Brushless ESC and Motor Combo have been designed to deliver extreme power and reliability with a more efficient dust-proof motor and IP-67 waterproof rated ESC. The 10BL's built in capacitor improves on the brownout protection, efficiency, and thermal protection. This combo will be a great option for a wide range of RC models. Features: G2 QuicRun 10BL120 Intelligent freewheeling technology Extreme performance Powerful built-in BEC Efficient cooling system Capacitor Thermal Protection Built-in capacitor IP-67 waterproof Rating G2 QuicRun 3660SL High efficiency for more power with lower temperatures! 4-pole rotor design for more torque with strong explosive force. Compared with the previous generation of motors, the output power and efficiency are increased by more than 10%, and the motor temperature is effectively reduced under the same load. 0.2mm thick silicon steel laminations, high strength explosion-proof rotor, high-temperature resistant coil, and imported high-precision and high-quality bearings make the motor super durable. Specifications: ESC: Scale: 1/10th Brushed/Brushless: Brushless Sensored/Sensorless: Sensorless Waterproof: IP-67 Current: Continuous: 120A Peak: 760A Input Voltage: 2-4S LiPo BEC Output: 6V/7.4V @ 5A Output Connectors: 4.0mm Bullets Dimensions: 2.07x1.56x1.50" (52.8x39.8x38.2mm) Weight: 4.19oz (119g) Motor: Input Voltage: 2S-3S LiPo KV: 3700kV Pole: 4 Motor Diameter: 1.42" (36mm) Motor Length: 2.36" (60mm) Shaft Diameter: 0.20" (5mm) Shaft Length: 0.73" (18.5mm) Front Bearing size: D16*D5*T5 Rear Bearing size: D13*D5*T4 Weight: 273g Includes: (1) QuicRun 10BL120 G2 1/10 Sensorless Brushless ESC (1) QuicRun 3660SL G2 Sensorless Brushless Motor (3700kV)