Effect of lessening the lower headset stack height?

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01-10-17 | 09:00 PM

#26

avhed

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Joined: May 2009

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Quote:

Originally Posted by SJX426

I never considered that there would be 7mm of difference between lower stack of HS's. My expectation for C&V HS (non integrated or hidden) would be no more than 3mm. Having said that, I really don't know what the range of differences are.

Threaded headset for 1981= mostly in the high 30s in millimeters. My Galli is 19mm on the lower portion.
Threaded headset with the lowest stack height now=? I see some claims of a 12 mm lower stack height, but have not verified.

Last edited by avhed; 01-10-17 at 09:14 PM.

01-10-17 | 10:42 PM

#27

drewellison

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Joined: Sep 2005

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From: Everett, Wa.

Bikes: Cinelli Nuovo SuperCorsa, Cinelli SuperStar, Raseza, Bike Friday, Litespeed Classic, Fondriest X-Status, Trek Checkpoint ALR

Quote:

Originally Posted by avhed

How far from horizontal is your top tube now?

It was on a bike with a sloping top tube, so it's a little less sloping now. To tell you the truth, I'm not sure I could tell the difference by looking. But if the TT were horizontal, I could imagine you'd notice a visual difference.

My thought is that the fork I took off was too tall to begin with. It is an Italian steel frame which had an American carbon fork. In researching a-c lengths, it seemed that Italian a-c lengths were shorter than most American made forks or at least the one which was on there, so that affirmed my thought that the frame was built with the intention of a shorter fork.

01-11-17 | 11:29 AM

#28

noglider

aka Tom Reingold

Joined: Jan 2009

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From: New York, NY, and High Falls, NY, USA

Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem

Quote:

Originally Posted by drewellison

But if the TT were horizontal, I could imagine you'd notice a visual difference.

I very much doubt most people can detect a 0.4º change in angle! This is whether the original angle was horizontal or not. It's a tiny amount.

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