All tubes butted is a bit of a misnomer. The main triangle are butted. But the seat stays and chainstays I believe are tapered. I don't know of any butted seat stays or chainstays.
Peter Jon White Peter White Cycles 24 Hall Rd. Hillsborough, NH 03244 603 478 0900 Phone 603 478 0902 Phax http://www.PeterWhiteCycles.com
"All men are mortal. Socrates was mortal. Therefore, all men are Socrates. --Woody Allen"
Question-
Does a Raleigh International have all the tubes butted 531, or just the main tubes?
Thanks for your help.
John Barron
Minneapolis, MN