I've been saddling the blue beast (pictured below) for nearly a year now, unassisted - and this summer's yard sale finds left me with a sizable pile of electric push scooter parts. So.. I fished-out the 350 watt motor, the best pair of batteries, and hung'em on the blue beast. I must admit, with a top speed of about 28 MPH and 20 MPH up 2-3% grades, it is nearly as addicting as wet T-shirt contests.