Part Number: SPMXSEM1040A Spektrum Firma 2-in-1 Brushless Crawler Motor/ESC: 1400Kv – SPMXSEM1040A. The Spektrum Firma Sensored 2-in-1 System is specifically engineered to be used with 10th scale Crawlers and Scalers. Featuring advanced Field-orientated Control (FOC) and professional drag brake performance and torque control, all while being fully waterproof. The compact 2-in-1 design grants builders the ability to reduce clutter and components, giving you the most room for scale accessories and customization. The integrated design makes the size similar to a 550 can size motor, making it a easy drop-in option for most 1/10 scale crawler, scaler and trailer models. Available in a low speed 1400Kv option for extreme slow speed and high angle of attack performance. And a high speed 2300Kv for excellent control for trailers and rock bouncers. Pro-level Drag Brake performance and adjustability. FOC (Field-Oriented Control) equipped. Integrated 40-amp ESC (160amp burst). 2-3S LiPo/6-9 Cell NiMH input voltage range. IP-67 rated waterproof system. Fully programmable with optional Spektrum ESC Programmer Box (not included). Developed and designed by Spektrum. Compact for easy installation in most applications. Ready to install – no soldering required. Adjustable high-power BEC (6V or 7.4V). Firmware updatable through the Spektrum ESC Programming Box. High heat resistant IC3 connectors, backwards compatible with EC3 connectors. Automatic LiPo low-voltage cutoff. 6V/7.4V adjustable, continuous current 4A (Switch mode). 2-3S Lipo, 6-9 Cells NiMH. 1.45 (37 mm). 2.28 (58 mm). 201g (including wire plug). 0.125 (3 mm). 0.62 (16 mm). No outside sales or payments. We only accept U. This option is only available on the PC. (These are the buyers responsibility). We do not lower the value on packages. All manufacturers require us to have buyers forward all warranties to them. Powered by SixBit’s eCommerce Solution.