Boombox bikes. May 4, 2009 by jmatthoch Leave a comment Pretty awesome. I saw a guy at critical mass with a three-wheeler and a dynamo through the rear axle, powering his system. http://www.oobject.com/category/boombox-bikes Advertisements Like this:Like Loading... Related Author: jmatthoch J. Matt is a beautiful animal. J. Matt is a destroyer of worlds. J. Matt is J. Matt freaking Hoch!