I've been messing about with my new ninebot max g30.(25kmh)
First thing I did was DL Custom firmware which would cap out at 27Km/h.
I then changed the serial number and managed to get 30kmh.
Installed custom firmware and put sports mode to 35Km/h, refuses to go faster than 29/rarely 30. Defo capped at 30 though.
Am I missing something?