The new G12 is a lightweight coreless lightning fast 450oz servo. Also direct battery powered. Recommended for shorter crawler competition runs where quick speed and power is needed. Not recommended for Basher or Heavy scale applications. It only weights 2oz and uses all metal gears. Also compatable with the G13 and G11 gearset. Will operate on a voltage of 7.4vlt-14.8vlt. Fully water resistant.