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American Frame ID Help

Old 01-18-20, 06:24 PM
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garryg
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American Frame ID Help

Picked up 4 bikes today,oh well. Any ideas as to who manufactured this frame. It is not steel, aluminum i would think.Titanium?








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Old 01-18-20, 09:36 PM
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After doing some research i am thinking Titanium frame.
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Old 01-19-20, 12:08 AM
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Agreed it's TI and pretty slick TIG welding, nice beads! No idea but possibly (just guessing) an early Merlin?
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Old 01-19-20, 07:04 AM
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Looks like the top tube might have a crack.


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Old 01-19-20, 08:16 AM
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Looks like titanium with as Unworthy said nice welds but with Ham's good eye sight not good news if indeed that is a crack. In my experience Ti cracks in a weld or in the seam weld which is needed to get the Ti sheet into a tube shape are fairly straight forward repairs, a stress crack like what that line may be is more difficult and $$$, if at all possible and I hope not the case.
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Old 01-19-20, 08:40 AM
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Just a bit of fluff,no crack.
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Old 01-19-20, 08:52 AM
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^ Good News!
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Old 01-19-20, 11:14 AM
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That is a great score. Looks to be very early in the titanium timeline, not Teledyne early but as someone said maybe an early Merlin. I love how the top tube cable guides are done, and looks like a lot of work went in to making the brake bridge. That it has a serial number should help in identifying it, so thatís a plus.

I have a early Moots VaMoots, that I absolutely love. This bike looks fun, and should clean up very easily.
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Old 01-19-20, 11:18 AM
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The intricacy with the welds at the ends of the stays is freaking bananas to me!
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Old 01-19-20, 01:42 PM
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First off, thanks for giving me something to do today - on a trip for work and didnít feel like doing any sight seeing, plus itís cold out.

Searched for vintage Merlin images, and found nothing that would link this frame to being one. I did learn that Merlin tends to put the serial numbers on the inside of the drive-side dropout.
Several images of bottom brackets with ďMADE IN USAĒ showed up, none with any real IDís, until I found this one:
https://forums.mtbr.com/vintage-retr...ct-362041.html
To save you having to read through that link, guys there thought it was a McMahon. So armed with that, I searched McMahon. I found a current listing on eBay for this bike - not identical to yours, probably a bit later, but Iím focusing on that rear brake bridge. Itís very unique IMO, and appears to made in-house. Check it out:
https://www.ebay.com/itm/Mcmahon-Tit...-/163892482405
It appears (according to several McMahon owners) that McMahon contracted Sandvik to build the frames. I havenít been able to find anything to confirm this, but I do recall Sandvik did contract work for several companies like GT and Mongoose...so this seems feasible.

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Old 01-19-20, 03:15 PM
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Thanks for getting farther than i could with the research!!
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Old 01-19-20, 04:05 PM
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Litespeed used that fork on some Bikes in the90’s.
Those guys were exotic metal specialists prior to building bikes, so their welding was pretty good.

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