What size wire is in that coil? i figured out what size wire to do for hub motor and 50amp controller and came out to an 8 for 5ft tether. have since gone back for commute just because I wanted to loose the heavy backpack. I was carrying 48v 15ah lifepo4 about 15lbs plus 5lbs kit = 20lbs backpack. It was great for offroad but too much for commuting. Anyway, I had similar coil wire but thought size was way to small, am I mistaken. By the way, your rig is literal a work of engineering art. I am assuming you are using lipo right. Do you ever have any concerns about discharge rate and having in backpack?