Great for micro helicopters, electric park flyers, and 1/18 scale cars Top-ball bearing for long life and positive centering Provides up to 31 oz-in of torque at 6.0V Overview Considered 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 (HRC33065S). The 65 series features a top-ball bearing for long life and positive centering, 31 oz-in (2.2kg-cm) of torque at 6 volts and is an excellent choice for higher performance micro helicopters, electric park flyers, and 1/18 scale cars. Detailed Information