Hi from Bulgaria :D
this is my 3rd bike dont have pic of old ones
Hub motor MXUS
controler 36-60v 40A with bluetooth - i use it in 48v 20A max with diy battery pack charge it with 12v 10A 4 packs
pasive air cooling for the batt. pack , heat is bad for them =]]]
55km no load
40km on flat with...