Lug markings
08-29-09, 07:58 AM
#1
SE Wis
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Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400, 2013 Novara Randonee, 1990 Trek 970
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Lug markings
This is a mark I found on the head tube lugs on a bike I'm overhauling for a guy at work. There was also a number "71". This is a Raleigh USA "record" 1984 by serial number, 25" frame. Any idea what it signifies?
08-29-09, 12:46 PM
#3
Disraeli Gears
When is the last time you saw a bike made in the 70s or 80s with a 71-degree head tube? And the angle between the top and head tubes is much greater than 71 degrees. Raleigh USA frames were made in Japan or someplace else than England, so the marks pictured may be characters from another alphabet, perhaps signifying the company that made the lugs. It also looks to me like the head lug was spot welded to the head tube before brazing.
08-30-09, 10:29 AM
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I believe that is the trademark for Japanaese lug manufacturer Eisho Seisakusho.
