What is this hole/mark on my Giant TCR?
05-27-22, 03:20 PM
#1
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What is this hole/mark on my Giant TCR?
So I have this 2006 Giant TCR Advanced carbon frame. Under the top tube there is a hole with a plug in it with surrounding discoloration. It is underneath the top tube about where the letter "N" is. So...
A. Why is this hole here? What is it for?
B. What is with this discoloration? Concerning?
A. Why is this hole here? What is it for?
B. What is with this discoloration? Concerning?
05-27-22, 07:50 PM
#2
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Has it been there for 16 years?
05-27-22, 09:47 PM
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Probably a riv nut for a number holder.
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05-28-22, 08:52 AM
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Used frame you bought from someone else? If so, you need to ask them.
05-28-22, 09:10 AM
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To me it looks like aluminum corrosion from the riv-nut. Looks exactly like the corrosion around the bottle bosses on the down tube. Have you considered scrubbing it off with a soapy tooth brush?
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05-28-22, 10:01 AM
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And that plastic bit riveted on there next to the riv-nut has the same corrosion due to the aluminum pop rivets used. Any mild acid will clean that up. A little Coca-cola mixed with a little dish soap and a tooth brush.
05-28-22, 10:26 AM
#8
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On the newer models it’s for the Di2 cable routing.
05-29-22, 07:06 AM
#9
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That's a large assumption. Just because someone owned something in the past doesn't mean they know anything about it. Ever watch "Antiques Roadshow"? He likely would not know. He didn't even know what "Dura Ace" was.
I'll try the soapy or Cocacola toothbrush today and see what happens. Thank you.
I'll try the soapy or Cocacola toothbrush today and see what happens. Thank you.
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05-29-22, 09:16 AM
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As I said previously that's for a race number holder.
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