ITEM NAME:2845 KV3100 Waterproof Brushless Sensorless Motor for RC 1/12 1/14 1/16 Car Boat Description: High torque design. Low heart production, long lifetime. Strong overload protection and it can functions 95% of its features without anyheat sink appliance. High quality materials adopted: aluminum alloy anodizing shell, front&back cover. High-performance temperature-resistant magnetic steel and imported high-speed bearing. Specification: KV(RPM/Volt):3100KV RPM: 50000 Max Current: 42A Max Voltage: