Features 1、36mm diameter, 50mm length, 3.175mm shaft diameter. 4 pole 12 slot high-torque motor design. 2、High purity copper windings maximizes efficiency. 3、Precision engineered for maximum energy conversion. 4、Precision balanced rotor,smoothness for best reliability and maximum RPM. 5、Any problem, please contact our store without hesitation. Honor to serve you. Features: 36mm diameter, 50mm length, 3.175mm shaft diameter. 4 pole 12 slot high-torque motor design. High purity copper windings maximizes efficiency. Precision engineered for maximum energy conversion. Precision balanced rotor,smoothness for best reliability and maximum RPM. Any problem, please contact our store without hesitation. Honor to serve you. Specifications: Item: 3100KV Brushless Motor Watt: 850 Max RPM: 60000 Max Voltage: <8.4V Max Amps: 100A Rotor Poles: 4 Diameter: 36mm Length: 50mm Shaft Length: 15mm Shaft Diameter: 3.175mm Plug Type: 4mm Golden Banana Plug 60A Brushless ESC Item Model: 60A Type: Brushless Voltage Level: Normal Continuous Current: 100A Burst Current(10s): 800A Suggested Battery Cell: 2-4S Lipo BEC output: 6.0V/5A Power Supply: 2-4S Item Size: 52 * 39 * 38mm Package Information: Package Size: 12*8*4cm Package Weight: 254g Gift Box Package Packing List: 1* 3100KV Brushless Motor 1* 60A Brushless ESC Package List 1* 3100KV Brushless Motor 1* 60A Brushless ESC