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Old 07-22-2009, 09:22 PM
Outrunner's Avatar
Outrunner Outrunner is offline
Motorized Bicycle Elite Member
Join Date: Dec 2008
Location: Atlanta, Georgia
Posts: 147
Thumbs up Brazing Aluminum

Just thought that I would pass this on to the forum, to make people
aware that brazing Aluminum can be cheap, fun and easy! All that
you need for this is a Propane torch and aluminum low temperature
brazing rods from Lowe's or Home Depot. Here's an example of my
intake manifold that I sawed across the center section, so that I
could turn the carb mounting end to create a slight angle. That allowed
my air cleaner to mount on my Mikuni carb, and clear the frame. Here
are some photo's.
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Change is inevitable and progress is OPTIONAL!

Last edited by Outrunner; 07-22-2009 at 09:29 PM. Reason: change word
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Old 07-22-2009, 09:39 PM
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old motorbike old motorbike is offline
Motorized Bicycle Elite Member
Join Date: Sep 2008
Location: Fl.
Posts: 352
Default Re: Brazing Aluminum

I just also started to weld aluminum by allumalloy rods. I welded a foot shifter together and some fan mounts on an alum. radiator. (I work at a motorcycle shop also).
I plan on using this on my new build. A full suspension rear mount.
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Old 07-22-2009, 10:11 PM
Creative Engineering Creative Engineering is offline
Join Date: Sep 2008
Location: Clearwater, FL
Posts: 1,668
Default Re: Brazing Aluminum

Great thread Outrunner!

This method is literally the only way to bond small cast aluminum parts. Cast Aluminum is very difficult to TIG.

It is fun to learn new things. This is the only reason I mess around in the shop. There's always something new to learn when building bikes.

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Old 07-30-2009, 09:37 PM
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Roadkill Roadkill is offline
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Join Date: Feb 2009
Location: Roadkill, USA
Posts: 242
Default Re: Brazing Aluminum

Thanks for this post.. I am also going to be welding Aluminum on a Gary Fisher frame (a Derailleur) and will be getting these rods tomorrow. I have a MIG that says I can do Alum with reverse polarity but I heard a TIG is better if anything besides these brazing rods. I would have to buy some Argon gas and perhaps a special spool of expensive aluminum wire feed. I will save the welder for the fun Steel MeTaL stuff I guess.

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