Tubing Specs for Riv Frames

[MikeC]

I was wondering if anyone has compiled a list of tubing specs for
Rivendell's frames. They all seem to use OS but what wall thicknesses,
heat treated, manufacturer, etc.?

Mike C

[Leslie]

Depends on which frame, which size of which frame, which maker of the frame (Waterford, Toyo, Nobliette, etc), when the frame was made... Not really sure it'd be quite possible to pin *every* variant down...

Any particular frame that you're querying? For example, on cyclofiend's site, the Rambouillet brochure has some info on it, etc....

[Tim McNamara]

On Aug 26, 2011, at 9:56 AM, Leslie wrote:

> Depends on which frame, which size of which frame, which maker of the frame (Waterford, Toyo, Nobliette, etc), when the frame was made... Not really sure it'd be quite possible to pin *every* variant down...

Given that Grant took to mixing and matching tube sets for the customs years ago (you might get a Tange top tube, Reynolds seat tube, Columbus stays, etc.) it would be impossible without a comprehensive review of the records for every frame. The "production" frames are different, they use tube sets. Grant specs tubes conservatively with longevity in mind.

Other than idle curiosity, I'm not sure it matters anyway. Princess and the pea reviewers- who usually find what they expect to find- aside, blind tests have almost always shown that riders can't tell one tube set from another reliably.

[CycloFiend]

I've never pulled together a list of such specs, but I'm not sure if it
would be appropriate or accurate. It seems from his mentions of the topic
that Grant pulls from a variety of quality makers on tubing, sometimes
mixing them as he feels necessary on a given frame project.

Part of the problem (skim the framebuilders forums for verification) is
obtaining tubing with consistent specs. The manufacturers who can produce
reliably consistent, high quality steel tubing for use in bicycle frames are
probably not that well known, in general, "stateside".

And I'd expect it might be to prevent some of the false equivilences which
might be drawn by another maker, stating something like "these are the same
tubes which Rivendell uses..."

- J

--
Jim Edgar
Cyclo...@earthlink.net

Cyclofiend Bicycle Photo Galleries - http://www.cyclofiend.com
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[newenglandbike]

While tubing names may not matter among high-quality tubes, I think wall thickness can be good to know, especially with OS tubing which IMO can be dent-prone if the walls are too thin.    There's a post on the Rivendell site somewhere about the specs for the AHH-   IIRC it has 8/5/8 top and down tubes and has .76 wall chainstays.    The Atlantis, Simple One, and SH frames I think all use 9/6/9 guage tubing.    I think the Quickbeam has 8/5/8 tubing like the AHH, and the Bombadil has either 1/7/1 or straight-guage tubing, I'm not sure.   I hope it's straight guage though.   The Roadeo has the thinnest wall tubing but I'm not sure how thin... .65/.45/.65? for the top and down tubes maybe.

[Jim Mather]

When I asked Mark about the Legolas and Roadeo a few months ago, he
showed me the spec sheet they sent to the builders. The Legolas and
Roadeo have the same tubing for top and seat tubes, fork blades and
chain stays. The Legolas downtube is slightly heavier at .7/.5/.7 vs
.65/.45/65 for the Roadeo.

They both ride great.

jim m
wc ca

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[Rex Kerr]

On Fri, Aug 26, 2011 at 7:25 AM, MikeC <mecin...@sbcglobal.net> wrote:

They all seem to use OS but what wall thicknesses,
heat treated, manufacturer, etc.?

They definitely use OS tubing on the AHH.  I kept looking at my AHH and wondering why the head tube looked so much shorter and the frame looked so much smaller than my old Schwinn when it finally dawned on me that it was an illusion due to the proportion difference with the larger tubing.  I forget the exact numbers, but I took out my calipers and measured the tubing and it was very similar in outside diameter to my Trek 520.  Interestingly (and happily), though, it doesn't feel dead when unloaded like my Trek, so it probably has thinner tubing (and most definitely has smaller fork arms).

[Max S]

Resurrecting an old thread – Mainly wondering about the differences between Simple One and Quick Beam frames, and also if there were any step-ups in thickness with frame size (e.g. 58 to 60 to 62). Anyone know? 

- Max "where's the ultrasound probe when you need one" in A2