Specifications: Quantity: 1 Pcs Body Length: 50mm / 1.97in Motor Diameter: 36mm / 1.42in Motor Shaft Length: 15mm / 0.59in Shaft Diameter: 3.175mm / 0.12in Use voltage: 2-4S Motor KV: 3600KV 4500KV 5200KV No-Load Current(11.1V): 2.0A / 2.8A / 3.7A Max Continuous Current: 70A / 75A / 95A Max Continuous Power: 900W Weight: about 163g Suit For: RC Car / Boat