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Old 04-28-12, 01:17 PM   #1
The MAX
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What is this? Weird frame nub content...

So I just finished fixing up a 92 (I think) Giant Yukon. Nothing real top of the line, but a solid bike, and will make a great commuter for someone.



And I noticed this weird braze-on/nub on the non drive side chain stay. Never seen one before and can't even imagine what it might be for. Any ideas? I thought it might be something to do with the quick release lever, but the lever doesn't even touch it.

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Old 04-28-12, 02:53 PM   #2
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That is weird. When you figure it out be sure to let us know.
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Old 04-28-12, 03:15 PM   #3
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might be a fixture for a proprietary rack, or maybe a fancy mounting point for the brake arm of a coaster brake hub... IDK.
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Old 04-28-12, 05:02 PM   #4
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I'm stumped, but very curious. Clean up the rust on that QR before you try to sell it!
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Old 04-28-12, 05:08 PM   #5
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I have the identical bike, never notice that.
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Old 04-28-12, 05:38 PM   #6
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I'm guessing an anti-rotational nub for a rear kick stand, but that's a guess.
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Old 04-28-12, 07:13 PM   #7
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Quote:
Originally Posted by bobdell View Post
I'm guessing an anti-rotational nub for a rear kick stand, but that's a guess.
I agree with that conjecture.
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Old 04-28-12, 08:31 PM   #8
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Would make sense with the two bolt holes in that dropout.
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Old 04-29-12, 03:06 AM   #9
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I'm guessing a mounting and anti rotational nub for a disc brake system.
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Old 04-29-12, 05:39 AM   #10
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I think that bike is too old for a brazeon for a disc brake. I lik the Kickstand idea or maybe something for a kid trailer?
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Old 04-29-12, 08:01 AM   #11
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Was the frame assembled in a automated welder? Might be for indexing purposes.
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