We saw this killer buildup from an article in Popular Mechanics on ADVRider.com. Makes us want to whip out the welder and put one together ourselves. The picture at left gives you a sense of scale.

From the original 1970 Popular Mechanics article:

"Though it will never challenge is bigger, more powerful commercially produced cousins, this shop-built micromini-bike will get you where you want to go for peanuts. Putting along – powered by its ¾-hp powerplant – the rig hits a racy 11 mph when flat out – more than enough to get you out on that backwoods jaunt or – with modifications for street use – to class, football practice or part-time job with time to spare."

Read the Whole Article