Glad to hear you got it resolved and impressive speeds! I’m on 15s as well. you want to experience scary, hop on that kart yourself lol. Son and I did some test drives over the snowy weekend and am now putting in a 4pt harness. So much grip around turns and it’s just wanting to throw you out.
I'm guessing this has been resolved by now but I just found this thread and wanted to chime in with my experience and resolution with the same issue that I have been dealing with this week as my build finishes. Same deal-48v 1800w brushless on a custom kart I have been building for a while. 10t...