I have an early 80s Bridgestone 700 frame made from CrMo 4130 Quadruple Butted Tubing. It is a nicely made frame, but not particularly light weight. It's a bit heavier than a Columbus SL frame.
Brian Samson Vancouver, BC, Canada
On 23-Aug-09, at 11:16 AM, Don Wilson wrote:
> I've heard of single, double, and triple butted tubing. Did any of
> the tubing companies ever try quadruple, even in testing?
> Don Wilson
> Bandon, OR USA
> D.C. Wilson dcwilson3@yahoo.com