Firma 85A Brushless Smart ESC / 4000Kv Sensorless Motor Combo. 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).