Key Features Constant Pirouette rate G770 3D Gyro Heading-Lock and Normal modes available Aluminum Gyro case G770 3D Gyro features Analog and Digital servo compatibility Ultra-Speed Servo for Instant Tail Control Reaction 8900G features an aluminum Heat Sink Center Case to help keep motor cool and increase efficiency Perfect for 600 Size and larger Helis Ultra Precision Nylon Gears

Overview The G770 3D gyro uses all-new SRVS UltraLok ™ technology to provide constant rotation rates regardless of head speed, wind or flight direction. And with its auto-trimming and anti-drift features, trim fiddling is a thing of the past. What’s more, the ultra high response rate 770 3D holds like no other JR gyro. The G7703D gyro and 8900G servo are available separately or as a combo.  Either component can improve your current machine - together they'll transform it.