Re: [CR] Sekai 4000 info...thanks - Tange Tubing

(Example: Events:Cirque du Cyclisme:2002)

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From: "james black" <>
Date: Sun, 16 Jan 2011 20:08:33 -0800
To: verktyg <>
Subject: Re: [CR] Sekai 4000 info...thanks - Tange Tubing

On Sun, Jan 16, 2011 at 13:20, verktyg <> wrote:
> Here's the differences right from the 1981 Tange Tubing Catalog:

Interesting data, and I don't doubt the integrity of your information, but it contradicts what I've heard from some other sources, that the #1 used .8/.5/.8 and the #2 used .9/.6/.9 for both top and seat tubes*. I find these figures plausible, since #2 bikes don't seem particularly flexy; and my #1-labeled Centurion Semi Pro doesn't have a crazy-thin top tube that I can deflect with a pinch between thumb and forefinger.

Maybe they lightened up their tubes (which is to say, shifted their numbering system) in 1981 - my experience is with 1976-1980 framesets.


James Black
Los Angeles, CA