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Old 06-11-2006, 10:40 PM   #1
Matt K
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Member#: 45204
Join Date: Oct 2003
Chapter/Region: NESIC
Location: you are so complex
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16 you don't
respond to danger

Default quick and dirty aluminum welding?

I have a cracked chain stay on my bike. I could buy a new frame, but I don't want to. It's a clean break, I just want somebody to weld it back together. I don't care if it looks good or anything, it won't even get subjected to all that much stress (I've ridden it a couple times with one busted stay, and the other one has held up fine so far...)

so, where can I get this done?
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Old 06-11-2006, 10:43 PM   #2
05wrxmatt
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Join Date: May 2005
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Location: Mooresville, NC
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2007 STI Limited
SWP

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What brand bike is it? Most of the larger bicycle companies have lifetime warranties on their frames (My Trek and Specialized do).
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Old 06-11-2006, 10:50 PM   #3
Matt K
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It's a 3rd+ owner used gary fisher frame on a complete mutt of a bike that broke 'cause it was repeatedly abused. I feel it is unlikely that any manufacturer on earth would warranty it
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Old 06-11-2006, 10:53 PM   #4
05wrxmatt
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Join Date: May 2005
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Location: Mooresville, NC
Vehicle:
2007 STI Limited
SWP

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What size is it?
18"?
I have an 17.5" trek 8500 frame that I need to get rid of...

I've been told that welding aluminum can be difficult if not done correctly.
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Old 06-11-2006, 10:57 PM   #5
Matt K
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18 I believe. You trying to get rid of an 8500 frame? How much? Oh, does it have rim brake mounts?
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Old 06-12-2006, 07:32 AM   #6
Zornorph
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Not stock anymore

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Any standard welding shop can do it with their tig welder - the real problem is that if the frame was heat treated, as most aluminum bike frames are, you will ruin the strength f the metal around the weld if you don't re-heat treat it, which, unless you have a special heat treating oven, I;m guessing you can't. I've seen this happen - the metal for about 3-6" around the weld will bend or break when used hard.

My suggestion is to chuck it.
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Old 06-12-2006, 08:01 AM   #7
VpointVick
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'90 Ishtbox Corolla
maroon, as in, I hope not

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Quote:
Originally Posted by Zornorph
Any standard welding shop can do it with their tig welder - the real problem is that if the frame was heat treated, as most aluminum bike frames are, you will ruin the strength f the metal around the weld if you don't re-heat treat it, which, unless you have a special heat treating oven, I;m guessing you can't. I've seen this happen - the metal for about 3-6" around the weld will bend or break when used hard.

My suggestion is to chuck it.
Speaking as a welder, ^^^ this guy speaks the truth.

Get a new frame.
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Old 06-12-2006, 08:09 AM   #8
Fuzz541
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A clean used frame of the same general type and quality (which is entry-level good) should be dirt cheap. $50 - $100 max. Craigslist and eBay should be rife with such items.
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Old 06-12-2006, 08:33 AM   #9
KC
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Is this a job for Alumaloy?
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Old 06-12-2006, 06:37 PM   #10
Fuzz541
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Location: Jianxi, China
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Old 06-12-2006, 06:48 PM   #11
JoshP
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your old motor is coming back to life next weekend
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Old 06-12-2006, 08:11 PM   #12
KD7000
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2004 Honda Pilot

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Matt, that bike has served you well. It's time to let it die.

As others have said, you should be able to find a reasonable frame for dirt cheap. That Leader frame above looks like a great deal.

Nashbar has their house brand frame for $129.00.

Price Point has their house brand frame for $99.00
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Old 06-12-2006, 08:19 PM   #13
05wrxmatt
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2007 STI Limited
SWP

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Quote:
Originally Posted by KD7000
Matt, that bike has served you well. It's time to let it die.

As others have said, you should be able to find a reasonable frame for dirt cheap. That Leader frame above looks like a great deal.

Nashbar has their house brand frame for $129.00.

Price Point has their house brand frame for $99.00
I took care of him.
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Old 06-12-2006, 08:23 PM   #14
KD7000
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2012 Mazda 3
2004 Honda Pilot

Default

Quote:
Originally Posted by 05wrxmatt
I "took care" of him.
Matt K is dead?






Nice to see more bikes recycled across NESIC. Matt- let me know if you need any help / tools building up the new frame.
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Old 06-12-2006, 08:35 PM   #15
05wrxmatt
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Member#: 87169
Join Date: May 2005
Chapter/Region: NESIC
Location: Mooresville, NC
Vehicle:
2007 STI Limited
SWP

Default

Let me know too.

I built my current ride myself. I bought a Specialized FSR frame and built it up with the parts from my 8500.

The FSR is a sweet ride.

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