Re: [CR] [indentify frame.....its a Bob Jackson]

(Example: Racing)

From: "kevin sayles" <kevinsayles@tiscali.co.uk>
To: "Craig Ryan" <cforestr@gmail.com>
References: <63DF26C2611845A29A937C292BC7FAE2@none98mw8l9chp> <4D5750FD.6070008@os2.dhs.org> <2FFFBF84B69343859BA5D2CB27347DC0@UserPC> <AANLkTinMpS3MS9MUe6BJ9RUeqfOMvYQCSzF+Xxk6zodu@mail.gmail.com>
In-Reply-To:
Date: Mon, 14 Feb 2011 20:19:36 -0000
Cc: classicrendezvous@bikelist.org
Subject: Re: [CR] [indentify frame.....its a Bob Jackson]


Craig, forgot to give you my reply to your question regarding vent holes.............

This is the way I was taught.......no vent holes in the top tube, or fork blades, or seat stays.....or anywhere. For example, if anyone was to buy one of my fillet brazed frames the chances are that it would be completely sealed except for the seat tube.

Although, I have been known to drill a vent hole for the top tube at the seat tube when the tubing is particularly light.

On a simular vein......I've never drilled and pinned a frame before brazing.

Kevin Sayles Otley West Yorkshire UK

----- Original Message ----- From: Craig Ryan To: kevin sayles Cc: john@os2.dhs.org ; classicrendezvous@bikelist.org Sent: Sunday, February 13, 2011 5:35 PM Subject: Re: [CR] [indentify frame.....its a Bob Jackson]

I just took in a Bob Jackson. Bought by customers father new from a bike shop in early 1972. Frame built in fall 1971 as a stock frame. Flickr site has some photos I shot. As a note the top tube is not vented to either the seat tube or head tube. Fork measured up at 367 @ 54mm rake.

http://www.flickr.com/photos/49670597@N03/

Craig Ryan Noblesville, IN forestaframes.com

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On Sun, Feb 13, 2011 at 6:08 AM, kevin sayles <kevinsayles@tiscali.co.uk> wrote:

Hi John, Its a BOB JACKSON

Had a look at your pals frame, and as a former framebuilder for Bob Jackson I'm going to state that I'm 99.9% sure its a Bob Jackson Olympus.........note the extended tangs on the bottom bracket shell...the heart shaped gear lever catch.......and yes we did the chainstay bridge that way!

The only thing which is slightly a miss is the use of a Wagner chevron top fork crown instead of the typical 14bis semi slope...with welded on tangs [fork liners]....but the fork on this bike also has fork liners, even so I'm still convinced its a BJ......it might even be one I made?......my own Olympus had a Wagner crown, but I didn't bother with the fork liners.

Wonder where my 1973 BJ Olympus is now!?........if anyone out there has a 23" x 22" top tube Olympus with a Davis sand cast BB shell with the extended tangs and unusually an extended tang underneath the bottom Prugnat type I headlug, and with a Wagner crown with the centre point removed, possibley still with half chrome front and rear stays [last seen in a French blue enamel, and sold to... I think... a Mr Guymer? in Hull UK] I'd love to be reunited with it again!

Cheers Kevin Sayles Otley West Yorkshire UK

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