Rydjor Bike Shop, Austin, MN – USA 
Rydjor Bike Shop opened its doors in July 1973 at 101 11th Street Northeast, Austin (the original Concrete Units office.) Dan Ulwelling and Pat Geraghty formed a partnership to capitalize on the "bicycle boom" of the early 1970s. A total store remodel was completed and the single store business eclipsed that of both stores. Out of more than 6000 bicycle dealers in the country, Rydjor was selected as one of the top 100 dealers in 1999.
Dan Ulwelling (1952-2006) was the sole operator of Rydjor Bike Shop since 1992. Dan's influence and taste can still be seen in the shop. He was an avid collector of classic, antique, and unique bikes. He is responsible for assembling Rydjor's collection of 84 bikes that hang from walls and ceilings in shop. Dan's knowledge of vintage bikes was amazing. All 84 are on display at the shop along with many antique jerseys, paintings, advertisements, and memorabilia.
Contact: http://rydjor.com/
Small overview from Rydjor's collection of 84 bikes:
