Motor Size: 2845 (380L) Speed: 2700kv ESC Required: 40A Voltage Range: 6~16v No Load Curr: 1.1A Max Load: 40A Diameter: 28.2mm Length: 47mm Front Mounting Hole Distance: 19mm Front Mount Thread Size: M3 Shaft Diameter: 3.175mm Shaft Length: 12mm Weight: 123grams Power: 275W