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Need a front derailleur hanger (braze) for aluminum seat tube

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Need a front derailleur hanger (braze) for aluminum seat tube

Old 03-16-12, 10:09 AM
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Need a front derailleur hanger (braze) for aluminum seat tube

See picture for details.

I'm just throwing this out there...I really only need one of these and I've found that I can either buy 1 for around $4 and add $15 in shipping (seriously!?) or buy 5 of them for $25 shipped.

Neither seems like a great deal for me so I guess I'm wondering if anyone out there has a spare or two they wouldn't mind sending my way for $10 (1) or $15 (2). I'd also consider buying a set of 5 and then sending 3 of them to someone if they want to split the cost.

FYI, I'd love to just ditch a braze mount and go with a clamp but I have a very aero seatpost. I've already had a guy try to put a "brace" on it to attempt to strengthen the cracked tab but then that only lasted a few weeks...So this is my last option to save a really nice racing frame.

...and yes, that's a hideous purple chainring. I bought the cheapest 44T I could find to try and bridge the gap between 39 and 53 until I got this fixed.

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Old 03-16-12, 02:56 PM
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You need to weld Aluminum, not braze. Welding on Alu usually necessitates re-doing the heat treatment or suffer a reduction in strength to the tubing. You might want to consider replacing it with a rivit-on derailler hanger, attachment could also be further strengthened with a bit of epoxy.

Neat frame, I still have a EL-OS tubed Quattro Assi frame that I bought new and raced on back in the early 90's.
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Old 03-16-12, 03:20 PM
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looks like the original must be bonded on
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Old 03-20-12, 03:45 AM
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I repair aluminum frames and can repair it if you like. Here is a Casati that needed new shift housing stops

29 437 by frankthewelder, on Flickr

Last edited by ftwelder; 03-20-12 at 04:19 AM.
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Old 03-20-12, 09:39 AM
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I'd just box it up and send it to Frank TW if you really want to save a "really nice racing frame."
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