Hello, my question is as in the title and I found these 2 rear hub engines, but I want to know if there are better alternatives than these. I have not bought the bike yet. I will buy the bike according to the engine I will choose. By the way, I will use the bike to go to work on the asphalt road.
GDR-19FAT
mxusebikekit.com
GDR-19
mxusebikekit.com