The Savox SB-2271SG-BE High Voltage Brushless Digital Servo combines leading edge technology with super high 12 bit (4096) resolution.Features:Unique steel gear train.Capable of HV operation.Brushless motor for smooth operation and efficiency.Ideal for 1/10 buggies and trucks, and some heli applicationsSpecifications:Torque @ 6v - 15.0kg/208.3oz-inTorque @ 7.4v - 20.0kg/277.7oz-inSpeed @ 6v - 0.085 sec/60 degSpeed @ 7.4v - 0.065 sec/60 degDimensions L x W x H (mm): 40.3 x 20.2 x 38.7Weight: 69g