Florida based motorcycle builders, the Parker Brothers, have materialized the light cycle from TRON to bring it out of the Grid and into this world. This fully functioning and street legal light bike can be purchased for 55 thousand dollars through Hammacher Schlemmer. It is powered by a Suzuki 1000cc engine and features the engineering marvel of the hubless rim. Take a look at the video (especially the shots of the bike being driven at night).
Also take a peek at this updated online version of the TRON Light Cycle arcade game.