Brushless Motor KDS-WS2838 3650KV Specifications: Motor Dimensions: 28.3mm(diameter) x 38.3mm(length) Shaft Diameter: 3.175mm Battery: 7.4v - 14.8v Current Capacity: 45A Max RPM: 3650RPM/V Weight:78 grams
Compatible with the following model(s): KDS Innova 450 BD/SD KDS Innova 450QS