A rare find? UK made...Zinn Z-Centaur 92
- Thread starter slimjoe
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Featch
Devout Dirtbag
With the close up shots of the joints I thought I might explain how these Zinn frames were brazed and the less than perfectly smooth joints.
They were hand brazed in one pass and left "as brazed". What you see is straight from the torch, no built up fillets and, importantly, no filing. The minimal heat input allowed the tubing to retain optimum tensile strength and eliminated the risk of damage from purely cosmetic filing. This allowed us to use thinner, lighter tubes with confidence.
At the time Reynolds didn't recommend fillet brazing 753 but they were "officially happy" with our technique.
Andy
They were hand brazed in one pass and left "as brazed". What you see is straight from the torch, no built up fillets and, importantly, no filing. The minimal heat input allowed the tubing to retain optimum tensile strength and eliminated the risk of damage from purely cosmetic filing. This allowed us to use thinner, lighter tubes with confidence.
At the time Reynolds didn't recommend fillet brazing 753 but they were "officially happy" with our technique.
Andy
Rod_Saetan
Old School Grand Master
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While you are here Andy, whats the idea behind the fork design?
Featch
Devout Dirtbag
Rod_Saetan":qbhjd0zo said:
We wanted a very light fork that wouldn't fall apart. We experimented with several designs, but back then component manufacturers were still over-engineering things and there wasn't a crown to take the road blades that was wide enough and didn't weigh a ton. They were a pain to build until we sorted out a decent jig.
My background was road racing (1st cat) but I was also an avid rough stuff fellowship rider, doing the most ridiculous routes on standard fixed wheel road bikes. I think all this is probably reflected in the overall design of the Zinn bikes.
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