3650 4370KV 4P Sensorless Brushless Motor with 45A Brushless ESC（Electric Speed Controller）for 1/10 RC Off-Road Car

The set includes a 3650 4370KV 4P Brushless Motor and a 45A brushless Electric Speed Controller(ESC), which is perfect for the 1/10 RC Off-Road Car. This 3650 4370KV 4P Brushless Motor is built from the best materials available, and is designed to provide both quality and performance at an affordable price. And it\'s with high quality aluminum alloy parts that are produced on the latest CNC milling machines. Additionally, the 45A brushless ESC features enhanced throttle response,excellent acceleration, strong breaks and throttle linearity.Motor Features: 4 poles Hi-torque motor design. CNC machined 6061 T6 billet alumium heatsink can. High purity copper windings maximizes efficiency. High RPM ABEC5 oversized bearings. Universal fit all 1/10 brushless cars-multi-mounting system for M3 screws. Precision balanced rotor, smoothness for best reliability and maximum RPM. Stator - Super Thin (0.35mm) laminations. Removable/replaceable. Precision engineered for maximum energy conversion. ROAR legal.Specification: RPM: 4370KV Max Current: 66A Max Watts: 820W Can Size: 3650 Sensored: No Can Diameter: 36mm Can Length: 50mm Shaft Diameter: 3.175mm Shaft Length: 15mm Bullet Connector: 4mm Weight: 146g/5.2oz Max voltage: 7.4V(2S)-11.1V(3S)Note: there\'s some little error from human measuring.