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Is going really-really slow your favorite speed?  We do that exceptionally well too!  Our electronic speed controllers and motors are made for precision applications like crawling.  Through years of software feature enhancements, we've changed the game when it comes to going slow.  Castle's ultra high resolution sensors give you throttle precision like never before.  So, if you're planning to scale a mini mountain or traverse a rocky trail, we've got what you need!

How slow can you go?