Description: The Waterproof 540 10.5T 3450KV Sensored Motor Brushless will provide more power and longer run times with its high efficiency?let your car challenge the muddy road. Sensor-based for excellent torque and low-speed driveability,Compatible with any sensored/sensorless ESC. High RPM precision bearings,CNC machined billet T6 aluminum heatsink can,High purity copper windings maximizes conductivity,High power solder tabs. Removable/Replaceable rotor,Powerful sintered neodymium magnet,Precision engineered for maximum energy conversion. Suit for for 1/10 RC Car Truck Crawler Boat. Specification: Item name: Sensored brushless motor Size: 540 Battery: 1-3S LiPo battery Sensored: Yes Max current: 63A Resistance: 0.0208 Watts: 250 Turns: 10.5 KV: 3450KV Shaft diameter: 3.17mm Material:Aluminium alloy Size:36 x 50MM Color:Blue Package Includes: 1 X 540 10.5T 3450KV Waterproof Sensored Brushless Motor 1 X Sensored wire