[CR] Kro-Mo tubes

(Example: Framebuilders:Norman Taylor)

From: "Robert Murray" <robertmurray@sympatico.ca>
Date: Fri, 16 Apr 2010 16:32:27 -0400
To: classicrendezvous@bikelist.org
Subject: [CR] Kro-Mo tubes

Giles O'Bryen wrote:

I guess it dates from the mid-1970s and the Suntour drivetrain is original. But the seat tube has an ID of 27.0 so it is (I presume) not a Reynolds tubed frame. That seems unusual for a British bike. Does anyone know what tubing might have been used? It has a rather unhelpful cro-mo sticker on it that doesn't look entirely convincing. It is very light. The holes at the top of the seatstays look unusual.

My guess might be Accles & Pollock "KROMO". A top quality tubing that became amalgamated with TI Reynolds and then dropped from production in favor of the more popular Reynolds 531. Not sure when this happened. My 1954 Claud Butler is made of Kromo. This tube was popular with British builders in the 1950's. Back in the 1930's, A & P made tubing for the 6 day track racing frames. My C.B. also has the holes at the inside top of the seat stays. A common practice for Brit builders I think.

Bob Murray
In sunny and warm Toronto