Hi, I am a newbie to the e-bike world. I am converting an old bmx style bike with my son as a project. I am mechanically and electrically inclined but advice is appreciated.
I am making it a trike with the original drive wheel on the back along with one on the other side. I removed the pedal crank as it won't be a hybrid. I was going to buy a motor/controller/throttle kit but the only thing I am not sure of is the sprocket. I want to use the bike sprocket on the rear with the existing chain. I have the front sprocket off the pedal crank. Is there a way to reuse that sprocket with the chain or is there a specific motor sprocket that will accept a bike chain? Or do I have to replace the sprocket on the drive wheel with one that accepts a #25 (I believe) chain? I will need to fabricate brackets and such to hold it in the proper place so that is not an issue (unless there are pre-fabriacted ones that can be modified)
Also what size motor and battery would be enough to drive the bike at a speed comparable to a scooter if not faster? I was thinking 48 V 500 A. If any of this is way out there let me know, thanks....