520 cromo is just cheap tubing that Reynolds buy in and stick their logo on, 653 is a proper Reynolds double butted tube from Birmingham. Keep the road frame until you find a nice Reynolds track frame.
@chris_tim started
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520 cromo is just cheap tubing that Reynolds buy in and stick their logo on, 653 is a proper Reynolds double butted tube from Birmingham. Keep the road frame until you find a nice Reynolds track frame.