The Savox SB2230SG+ High Voltage monster torque brushless steel gear Digital Servo. Ideal for giant scale aircraft, monster truck, 1/8 scale. Savox SB2230SG+ Servo Features: Combines leading edge technology with super high 12 bit (4096) resolution and unique steel gears. Ideal for use in Giant airplanes. Brushless motor provides longer life and cooler operating temps. Extremely strong unique steel gears ensure long-life and durability. The full aluminium case design not only looks good but also allows for cooler and smoother operating temps. Savox servos are totally green – from materials to production, these servos are environmentally friendly. Spec Check: Dimensions(mm): 40.3x20.2x45.0 Weight(g): 84.0 Speed(@6.0V sec/60): .16 Torque(@6.0V oz-in): 499.9 Speed(@7.4V sec/60): .13 Torque(@7.4V oz-in): 583.3 Gear: Unique Steel Bearing: 2BB Case: Full Aluminium 25 Tooth Spline Frequency:250-333 Pulse Rate Frequency: 1520 Savox Plus / ""+"" Models: feature a new Soft Start Mode and Sanwa SSR compatibility. (SAV-SB2230SG)