I have a mini Ebike. The motor is good The contoller is no good. I have waited almost 3 months for lifepo4 24 volt 20 amp battery. What type of hub is it? Brushed brushless? What are those two brown wires out of motor to controller do? It is a 24 volt motor. What controller should I get? I might go to 36 volt battery scheme. Any prob with that?