The SA-1258TG Plus servo is a high torque servo and is perfect for those who are looking for a minimized backlash to use on flying surfaces of RC planes. "Plus" models feature Soft Start and Sanwa SSR CompatibilityFeatures:Extremely strong titanium gears ensure long-life, durability, and light weight.Aluminum middle case allows for cooler operating temperatures.Minimized backlash for precision aerobatic airplane use.Soft Start and Sanwa SSR CompatibilitySpecifications:Torque @ 4.8v - 9.6kg-cm/133.3oz-inTorque @ 6v - 12.0kg-cm/166.6oz-inSpeed @ 4.8v - 0.10 sec/60 degSpeed @ 6v - 0.08 sec/60 degDimensions L x W x H (mm): 40.8 x 20.2 x 37.2Weight: 64g