Spektrum Firma 100A Brushless Smart ESC / 6500Kv Sensorless Motor Combo: No-Prep. The Spektrum Firma Sensored Smart ESC System is specifically sourced to be used with 10th scale Drag and Speed Run models running 2S LiPo power. Featuring advanced Smart connectivity that reports valuable telemetry data without any extra accessories. Motor and ESC Combo: Easy completion item for RC Drag Racers Geared for Competition: Specifically sourced for Stock Class and Pro Class 2S Drag Cars Program via Transmitter: Proprietary Text Gen Programming Allows for programming the ESC from Transmitter. The Spektrum Firma Sensored Smart ESC System is specifically sourced to be uséd with 10th scale Drag and Speed Run models running 2S LiPo power. Motor and ESC Combo: Easy completion item for RC Drag Racers. Geared for Competition: Specifically sourced for Stock Class and Pro Class 2S Drag Cars. Program via Transmitter: Proprietary Text Gen Programming Allows for programming the ESC from Transmitter. Sorry, our items are NOT available for pick-up. No additional information at this time. You might also like. AKA Premium CA Tire Glue. Castle Creations Mamba Monster X 8S 1/6 ESC/Motor Combo w/1717 Sensored Motor 1. ProTek RC 5x10x4mm Rubber Sealed “Speed” Bearing (10).