The GoolRC S2845 3100KV sensorless brushless motor is designed to provide both quality and performance at an affordable price. It is built from high quality aluminum alloy which is produced from the latest CNC milling machines, and is designed with high power and rotation speed to provide longer run time.<br><br><br><br>Features:<br>4 Pole 12 slot hi-torque motor design.<br>High purity copper windings maximizes efficiency.<br>CNC machined 6061 T6 billet aluminum heatsink can.<br>High RPM ABEC5 oversized bearings.<br>Precision engineered for maximum energy conversion.<br>Short stator, less wire, lower resistance, more power.<br>Precision balanced rotor,smoothness for best reliability and maximum RPM.<br>Suit for 1/18 1/16 1/14 RC Car brushless cars-multi-mounting system for M2.5 screws.<br><br>Specifications:<br>KV(RPM/Volt): 3100KV<br>Max RPM: 50000<br>Max current: 47A<br>Max watts: 800W<br>Max voltage: &lt;17V<br>IO: 1.9A<br>Rotor poles: 4<br>Resistance: 0.0285<br>Diameter: 28mm<br>Length: 45mm<br>Shaft length: 15mm<br>Shaft diameter: 3.175mm<br>Sensored: No<br>Connector: 3.5mm golden banana plug<br>Item weight: 110g<br><br>Package Information:<br>Package size: 10.3 * 8.1 * 6.2cm / 4.1 * 3.2 * 2.4in<br>Package weight: 145g / 5.1oz<br>Gift box package<br><br>Package List:<br>1 * GoolRC S2845 3100KV Sensorless Brushless Motor