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Trek 7000 - bonded frame?

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Trek 7000 - bonded frame?

Old 07-19-16, 05:24 PM
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andy_p
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Trek 7000 - bonded frame?

I've just read on Sheldon Brown's site that the Trek 7000 has a bonded alu frame. I have one - should I be worried about taking it down singletrack (or otherwise using it as an MTB/CX bike) for the foreseeable future?
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Old 07-19-16, 07:15 PM
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No, just ride it into the ground. I bought a 8000 brand new in '93 and it was pretty much bulletproof. Age isn't going to make it come unbonded.
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Old 07-19-16, 07:37 PM
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When I was in college, the Cherry Bike Shop in Lafayette IN had a bonded frame hanging on the wall. The owner had come bombing full speed down a local hill, hit the railroad track at the bottom, and one of the bonds released at the downtube, leaving the top tube to hold the bike together.
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Old 07-19-16, 09:42 PM
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I hear of those kinds of failures, but I hear they're pretty rare, too. Probably not a lot of hard data on which ones fail, and how. I've got a couple of old bonded bike frames (Tehnium) but haven't ridden them enough to break them.

I'll let you know when it happens
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Old 07-20-16, 02:08 PM
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Thanks for the input! I'll just keep riding it.
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Old 07-20-16, 02:30 PM
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Originally Posted by Shimagnolo View Post
The owner had come bombing full speed down a local hill, hit the railroad track at the bottom, and one of the bonds released at the downtube, leaving the top tube to hold the bike together.
The good thing is you don't need to braze or weld, just JB weld and it's Iike new. :-)

I really have no experience with these but have cracked my share of aluminium and chromo bikes back in the day doing stupid stuff, most any material can give. Seems rare to have happen but bumps and jumping on a mountain bike would honestly scare me to the point I would probably hold back. Gravel or Road would not concern me much.
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Old 07-20-16, 11:45 PM
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I have a 1990 Trek 7000 that i got new in 1990 and I have rode that bike alot and have had no issues with the frame at all. just ride and enjoy!

Heres a pic of mine a couple years ago when i was commuting on it daily.
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