ReptilesBlade
I presume you ask me about E+ kit.
From manufacturer Electric Motion Systems, Virginia.
Search for E+ on this ebike subforum and you will find a lot, I posted 2 revievs , I dopn't want to repeat myself and take valueable space on this subforum.
E+ is for those who want to have one of the best but cost $$$ but it is designed in USA and build in USA to last. No China brand motor here.
I am approaching 1500km/1000miles/ on mine E+.