The Hobbywing EZRun 4268SD G2 Sensored Brushless Motor has been designed to provide maximum speed and power. Using an advanced sensored system, this motor can deliver more aggressive launches, higher speeds and better efficiencies. With the waterproof sensor connection, you can enjoy all the benefits of a sensored system no matter the terrain. Features: Advanced sensored brushless technology Waterproof sensored motor Designed for extreme speed and power Specifications: Scale: 1/8 Applications: Buggy or Heavy Duty Monster Truck Pole: 4 kV: 2500 Voltage: 3-4S Outer Diameter: 42mm Length: 68mm Shaft Diameter: 5mm Weight: 355g Front Bearing: 16x5x5mm Rear Bearing: 11x5x5mm