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Discussion Starter · #1 ·
I have an older aluminum mountain bike and i love the bike and the frame. but I would like to get rid of my v-brake mounts and the rear disc adapter and have somebody weld an IS mount to the rear of the frame. similar to this NOVA AL7005 DISK BRAKE TAB/MOUNT :: SMALL PARTS :: BRAZON/SMALL PARTS :: Nova Cycles Supply Inc.

the bike itself is a KHS Alite 500 that is the 6061 aluminum. Somebody close to omaha would be great, but i can ship it. Right now just looking for prices before i strip it down again and get ready to powder coat it this fall.
Tire Bicycle wheel rim Mode of transport Bicycle frame Bicycle fork
Wheel Bicycle wheel rim Mode of transport Bicycle tire Spoke
 

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RCP Fabrication
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Yes and no. It makes it easier, but you still need to find a builder who is willing to do the work. The saying "You touch it, you own it." rings loudly with aluminum frames. What I mean by that is the person who welds the brake tab on is going to have a headache down the road if the headtube cracks and rips off. You assume liability on the whole frame by doing any work to it.
 

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The chances that it'll end well with some random local welder are low. Being totally honest: if you love the bike, keep riding it as-is and accept that it's not the latest and greatest in terms of component compatibility. If you really want a frame with a disc tab and any other new-fangled bells and whistles, buy a new frame.

-Walt
 

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I can't really advise you on having a local shop do it. Could I have welded it up when I worked at a welding shop with zero frame experience.... probably. Could a lot of weldors that I have met over the years screw it up and total your frame.... definatly.
 

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Discussion Starter · #16 ·
That I am not concerned about. I have a friend who tig welds for a living. And he has a cnc mill to make a bracket. He was just concerned about the heat treating. he has welded all of my families duck boats as well

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Easton says to artificial age 7000 tubes:

"Age 6 hours at 200 degrees F (± 10 degrees F)
plus 4 hours at 320 degrees F (±10 degrees F)"

So if you can find an old pizza oven this is doable. Maybe a powdercoater?

Columbus mentions this:

"This means that in the areas overheated by the welding the supersaturated structure is restored, which, owing to the natural aging (which takes place at ambient temperature), allows for a 75% recovery of the initial properties after a lapse of time of about 3 weeks."

So I don't know if 75% is strong enough, but you might be able to get away with welding it and letting it sit for 3 weeks.
 
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