This standard size waterproof servo has metal gears, ball bearings and a good balance of torque and speed making it suitable for anything 1/10 or 1/8 except single servo 1/8.

Specs:
Voltage: 4.8~6.0V
Torque: 10~12kg/cm
Speed: 0.16~0.14sec/60°
Weight: 42g
Dimensions: 38.6x18.8x34.9mm
Gears: Metal
Bearings: Twin BB
Type: Analog
Servo Plug: JR type