

Standard high-torque, ultra-high-speed digital servo with brushless motor and dual BB-ed output shaft for general-purpose use in all types of RC models - ideal for 1:10/1:12 drift and on-road RC cars, as well as model aircraft and helicopters. Aluminum case with CNC-machined central heatsink for perfect cooling under high loads.
The GO-1257MG is programmable using the KAVAN GO servo programmer/USB interface and PC software.
Wide input voltage range 4.8-7.4 V (nominal), operational 4.8-8.4 V.
Output shaft 25T/5.92 mm.
Servo dimensions Standard
Servo type Digital
Programmable Yes
Torque at 4.8 V [kg∙cm] 10
Torque at 6.0 V [kg∙cm] 13
Torque at 7.4V [kg∙cm] 14.5
Torque at 8.4V [kg∙cm] 16
Speed at 4.8V [s/60st] 0.08
Speed at 6.0V [s/60st] 0.07
Speed at 7.4V [s/60st] 0.065
Speed at 8.4V [s/60st.] 0.058
Metal servo gears
Ball bearings 2×
High voltage Yes
Power supply [V] 4.8 - 8.4
Length [mm] 40.2
Width [mm] 20.2
Height [mm] 26.5
Weight [g] 57.2
Designed for airplanes, helicopters, passenger cars
Water resistance No