Quad Bike Electric Conversion
2017-12-18 12:55:00 +0300 » bikes, Design, Electrical, Fabrication, Mechanical, odd
My grandpa purchased a quadracycle or quad bike.
It’s kinda hard to take up hills. But it’s wicked fun to ride. Could this be improved? Absolutely! I electrified it!
I did some rough hand calculations and estimated that it would take at least 1 HP to make a real dent in things with two heavier-set people behind the handlebars. So I found a scooter electric kit that fit the bill at 1kW for 48VDC. It included the electrics, sans batteries, so all that really needed done was powertrain and bracketry.
But first, a prototype.
I did this all over the course of a weekend with a south bend lathe, a MIG gun, grinder, scrap metal, and not much else. I was lucky enough to have a one-way bearing…
The motor in that drill should provide about ¼ HP. And I’m pretty light (120lb). It seemed to work out, but a little underpowered, and the magic smoke comes out quickly. Enough to decide on comitting to my sizing and forge ahead.
I finished the electric conversion up just in time for christmas…