This 1975 BMW R75/6 has been customized by renowned bike builder Tony Prust from Analog Motorcycles in Chicago, Ill. Dubbed the AMA BMW R75GS by Prust, the bike is being raffled off to raise funds to support the Hall of Fame, a 501(c)(3) non-profit. Mods include a custom sub frame, Fox Street RC1 shocks, Race Tech Gold Valves, billet triple clamps and rider pegs, an engine refresh, an aftermarket performance ignitions, updated electronics and wiring throughout, custom paint, new controls, new brake lines and much more.
http://ebiz.americanmotorcyclist.com/Bi ... fault.aspx
More pictures http://www.analogmotorcycles.com/builds ... bmw-r75gs/
They have done a few other airhead builds, including a '58 R50!
http://www.analogmotorcycles.com/builds/