Product Description Specifications:Rated voltage: 7.2-7.4vRPM@7.4v: 15344KV (RPM/V): 2060Max Current: 35AMax Power: 280WMax Efficiency: 90%Weight: 170gDiameter: 35.8mmLength: 82.2mmShaft Length: 51.2mmShaft Diameter: 3.175mm