Racers were asking for a stock version of Team Orion’s successful Vortex R10 Pro speed controller and the Vortex R10 Stock is the result. Now you can squeeze the extra power out of your stock racing motors, while keeping total control with the awesome throttle and brake feeling of their US National winning ESC software. The R10 Stock has been factory programmed with the 0° timing software, which is optimized to give the best possible performance when using 0° timing.