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Legnano seat binder???

Old 11-05-04, 10:13 AM
  #1  
frenchfry
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Legnano seat binder???

I've recently gotten ahold of a Legnano frameset, I think from the sixties. It is blue and silver, with Cmapy dropouts, a crazy head badge and the Legnano seat binder that is under neath the seat tube/top tube joint. The binder bolt, however, is no longer in the bike. I think that it is a cammed shaft with a bolt that threads in from the opposite side, and I'm wondering if anyone knows where to find one.
Thanks!

Last edited by frenchfry; 11-06-04 at 12:21 AM.
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Old 11-05-04, 08:23 PM
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TheOtherGuy
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Sounds like it might be the same binder as the Legnano frames use... Get friendly with a local machinist and have it made. They were a three piece part including the bolt, and pretty simple to make. You could actually make one yourself by cutting, threading & filing some steel bar stock.
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Old 11-06-04, 12:22 AM
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frenchfry
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woops, it actually was a Legnano frameset. I wrote COlnago just cuz I'd been reading something about COlnago right before posting that. Thanks!
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Old 11-06-04, 12:24 AM
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frenchfry
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so was it a cammed bolt with threads and nuts on either end?
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Old 11-06-04, 12:38 AM
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Ok; picture a steel dowel with an O.D. that just fits inside the frame hole. This dowel has a concave surface filed into it where it contacts the seat post, and is split into two halves, right & left, and also has a bolt hole in the center of it. On one side, the bolt hole is large enough for the bolt to pass through the dowel, and the other side of the dowel has the hole threaded. Tightening the bolt pulls the two haves together, and pulls the concave surfaces together against the seatpost, which also pushes the dowel halves toward the front of the bike... Not so easy for me to explain, but if you saw the thing once, you'd see how simple it is...
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