Not very practical but it's pretty ingenious. I like that it has front and rear disk brakes (link to CL ad):
https://phoenix.craigslist.org/nph/mcy/d/scottsdale-dpx-drill-powered-pit-bike/7413181011.html
https://phoenix.craigslist.org/nph/mcy/d/scottsdale-dpx-drill-powered-pit-bike/7413181011.html