Earlier this year I started messing around with the math to do an electric conversion for a car, but then a few weeks ago i decided why not try a bike? It would be a much simpler project, and if I ditch AC, I can make my own controls, save some money and have some fun. I also saw a 2000 Buell M2 with a titled frame, so I snagged it. The guy I bought it from has a bunch more parts, tools, and curiosity in the project, so finishing the bike won't be an issue.

Now here's where I'm stuck. When I was planning the car, I looked at motors based on what torque I needed to move the mass of the thing. I gathered up all the equations I needed and plugged them into MATLAB. My intent was to do the same for this project, but I can't get a hold of a lot of variables, frontal area being one of them.

Basically, I'm looking for motor advice at this point. The dry weight of the bike is ~400 lbs. and I'd like to be able to go at freeway speeds, 15 miles for range.

Has anyone used golf cart motors? This one looks like it'll spin fast enough(4 HP, 4400 RPM, 36V, 102A), but I don't know if I'll overspin since I can't find a datasheet and I don't know if it has the torque anyways.

Thanks in advance.

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