[CR] 708 tubing

(Example: Racing:Wayne Stetina)

From: "Anthony" <Mezzbike1@zoominternet.net>
To: Thomas Adams <thomasthomasa@yahoo.com>
Date: Fri, 26 Feb 2010 14:25:54 -0500
Cc: classicrendezvous@bikelist.org
Subject: [CR] 708 tubing


Hi Thomas,
      Reynolds 708 was introduced in 1982 according to a flyer from TI Reynolds, It has what was called variable strength technology.
      The head-tube and fork parts are 531 mang-moly at 120,000 psi, the three main tubes where of the same mang-moly but heat treated to 135,000 psi and the stays are made of mang-moly but heat treated to 195,000 psi. The latter is what 753 was made of.
      708 has 8 straight ribs on plain gauge through the three main tubes I built about 10 frames from it, I built one last year from my final set. similar to Super Vitus TXO tubing, however the TXO had a 6 ribs down the tubes and on top of the butts and had a strength 175,000-185,000 psi.
      Super Vitus was a Chrom-moly-Vanadium steel and still is my favorite tubing to work with.
      Columbus SLX/SPX had spiral ribs on the butts and TSX had spiral ribs through out the tubes, the psi was about 120,000. TSX was like a giant spring inside, in my humble opinion al it did was add weight. Anthony Mezzatesta Custom Cycles Cranberry Twp. PA. 16066 http://www.mezzatestacustomcycles