I have a Detroit Bikes e-sparrow. It’s a single speed , with a 36v 7.8 Ah battery, 250w motor. Not the most powerful machine but I like it. Wondering what anyone might think of adding a front hub to this configuration ? I also considered taking the rear emotor out, putting in a 3 speed hub and putting the front ehub on ? Would that then be an AWD setup ? I have some hills in my area and I don’t mind a DIY project.