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PostPosted: Thu Jul 07, 2011 9:09 am 

Joined: Thu Jul 07, 2011 9:04 am
Posts: 1
Hello, this is my first post on Gunnars.

I am looking to purchase a pre-owned Gunnar Sport locally, but the frame has been re-painted and there are no serial number on the bottom of the frame.

Are there other ways to determine if the frame is actual Gunnar? From what I can tell, it looks to be a Gunnar, but not exactly sure without serial number.

Thanks in advanced.

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PostPosted: Thu Jul 14, 2011 3:07 pm 

Joined: Mon May 09, 2011 1:57 pm
Posts: 15
Location: Ohio
If you know the year and size, you could cross check the headtube length with the Gunnar Geometry sheet/spec sheet. Measuring the top tube or seat tube is somewhat difficult to get an accurate measurement.

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PostPosted: Fri Jul 22, 2011 7:18 am 
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Joined: Sat Oct 23, 2004 12:03 pm
Posts: 73
Every Gunnar goes out with a serial number. The number may be hidden under the paint, but every frame gets one. Check out the FAQ section at to find out where the serial number is and what it looks like.

Paint can, sometimes, obscure part of a serial number. With a model, size and history, we can fill in partial serial numbers. It is very rare that you can't see enough of a serial number to identify the frame.

If the serial number has been removed, I'd be concerned about foul play. You certainly would not want to buy a stolen bike. We have a record of virtually every Gunnar ever built. If you want to buy a used Gunnar, you have the right to validate the serial number.

We're so serial number-obsessed that we require a valid one for every Gunnar registered (new or used). Once you register your Gunnar, you can report it stolen and we'll keep an eye out for it.



Richard Schwinn

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