I don't have the room to display something as large as a bike for artwork (leaving aside whether or not my wife would go along with calling a bike art), nor do I have the money to buy a bike worthy of that title whether or not I chose to ride it. If you do, more power to you.
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Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?), 1990 Concorde Aquila(hit by car while riding), others in build queue "when I get the time"