250 A B OAT ESC 8S F LIER. 1x 250A BOAT ESC 12S Flier. 1x UBEC 12S/12A Flier. 250A Boat ESC 8S Flier. Software and Manual available at Flier Model website. Efficient watercooling equipped with double inlet and outlet water. The firmware is upgraded recently. Two way communication while connecting it with computer. Firmware can […]