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Fantastic idea...

but the Trek 810 was not terribly uncommon (though the sibling 800, 820 and 830 models were much more common) so I have no idea why it was so hard to get parts or why there would be much grinding/hammering. It used similar standards as most steel frames of the 90's (including the aforementioned Trek models). Some of those are no longer current standards, but the stuff still shouldn't be hard to get. I recently refitted a similar-era Gary Fisher with no difficulties whatsoever.

TLDR: Big win on the final product, semi-fail on getting there.

Clemens ( Builder)

Yes the trek 800 820 and 830 were common bikes but the 810 was not commonly distibuted in austria, there are some small but important differences, for example the holes fore the Package-holder are not the same size than on common bikes, most of the original screws are not metric and the singlespeed parts didnt fit well (scratching on the frame(Pedal wheel))
And Yes your right the parts i needed are not current standards but the local bikeshops are very poor in service, except one who loved the idea.

Jon Webb

I don't understand why you need a chain tensioner on a single speed. Is there something I'm not understanding? Why not just adjust the chain to the right length?

Clemens ( Builder)

thats easy, just because i tried, but the "magic-Gear" doesn´t work properly.
even with a half link.
so i chose to use a tensioner.

Alexander Wilde

I appreciate im over a year late on this post. But I used to come to bikehacks.com an awful lot but for some reason i drifted away from it.

However, I recently was given a brass horn by my grandfather, and im not talking a small horn it's about a foot long, and 4 inchs across (approximately). And i really want to get a hold of a classic bike (or make a newer bike look classic as above) and fit said horn to it. Just wondering what kind of bike(s) people would recommend? (from the uk)

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