Re: DeRosa Merak Rear Brake Problem

On Fri, 3 Jan 2025 08:27:09 -0500, Zen Cycle <funkmaster@hotmail.com>
wrote:

Of the 3 frames tom posted which have valid links, only the De Rosa has
the configuration we're discussing.

Thanks.  I'm still having difficulties visualizing a B-Stay.  I tried
searching for a photo of a rear brake mount (both caliper and disk)
but couldn't find anything that matches Tom's description.  I'm not
sure that anyone uses caliper brakes on a carbon fiber frame without
also using an aluminum insert to reinforce the carbon fiber.  When I
search for it, all that appears are photos of carbon fiber caliper
brakes:
<https://www.google.com/search?num=10&q=caliper+bicycle+brakes+on+carbon+fiber+frame&udm=2>
Granted, there are carbon fiber caliper brakes, but those don't seem
like the brakes that Tom is using.  For example:
<https://bikerumor.com/ciamillo-is-back-with-insanely-lightweight-carbon-fiber-lekki8-road-brake-calipers/>

I guess I'll just wait for Tom to post a photo of his DeRosa Merak.

The Canyon and TreK are both full
carbon lugless designs. The Giant TCR series never used a hybrid
carbon/Al construction. As for the DeRosa, the seat stay assembly is
likely a generic component sourced from a Taiwanese vendor.  As I
mentioned, "B-Stay" is a Colnago trademarked marketing term for their
design. Tommy is attempting to genericize the term.

I'm not sure Colnago has a trademark (or wordmark) on B-Stay.  I
searched the USPTO site which found 6552 that were active, none of
which are registered to Colnago.
<http://tmsearch.uspto.gov>
General Search = B-Stay
Refine Search = Colnago
To demonstrate that the search works, try "Trek" in the Refine Search
box.


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Jeff Liebermann                 jeffl@cruzio.com
PO Box 272      http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
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