Hitec HS65MG+ Mighty Feather 11.9g Metal Gear/BBConsidered one of the most powerful servos in the micro class, the HS 65 is offered with a choice of shock resistant Metal or zero wear Karbonite gears. The 65 series features a top ball bearing for long life and positive centering, 31 ounces inches of power at 6 volts and is an excellent choice for higher performance micro helicopters, electric park flyers, and 1 18 scale cars.