This is so cool. I recently made my own electric bike. I actually designed it to go it's top speed. That is 50 MPH.
I travel from here to there quit a lot and i got tired of being in the stupid traffic. During certain times of the day you can literally sit in traffic for at least 45 min. to an hour. Here's a picture of my electric bike. As I mentioned it does go up to 50 MPH.
I now go around this traffic, and actually arrive at my destination in less time because i don't have to stop.
So I wondered what it would take to make an electric bike. I actually had my electric bike now for 6 months. I totally love it.
The gas alone, I have saved $475 in these 6 months. I have also saved on insurance by changing my coverage. This is saving me another $120 every 6 months. You can save more by eliminating your insurance all together if you no longer are going to use your car.
I highly recommend this guide to design your electric bike.
This is all laid out. Design your own bike to your specs. You can even choose how fast you want it to go. This will determine the battery size you will need.
You choose your bike frame this is easy to do. You generally get to design the whole thing.
The best thing having an electric bike is Eco Friendly.