Originally Posted by spectastic

I've thought about building a electric motorcycle, thinking it'd be a nice project. However, they consume about 116 Wh/mile, while a ebike can get 20 Wh/mile.

So I want to build an ebike that can go fast (maybe 2000-4000W) which should get me to 35-50 mph without pedaling. I also want to put in there a 2.5+ kWh to get me a 100+ mile range.

does anyone have expertise in this realm? what would be the best option to get there in terms of quality, reliability, cost? I'm on a grad student budget, so i don't want to shell out $6k on one of those stock bikes. If I can rig up something for maybe $3000, I'll be happy.