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your Firma™ ESC provides you with the benefit of battery telemetry that's automatically transmitted to your compatible Spektrum radio in real time
Easy to use interface with dual LED charge progress indicators
reliable power for pilots
"This is the Savox SA-2273SG High Torque Brushless Unique Steel Gear Digital Servo
providing reliable and smooth performance
MST FXX-D Aluminum Gear Ration Adjuster (Red) - MXS-210337R TRX82044-4 your Firma™ ESC provides youMST FXX D Aluminum Gear Ration Adjuster (Red) MXS 210337R The MST FXX D Aluminum Gear Ration Adjuster is an upgrade for the FXX D and FMX D models. The machined aluminum option will help to provide a rigid structure for the drivetrain increasing durability and chassis rigidity, while the available color options will give your ride a custom look that cannot be matched by the stock parts.