Checking the alignment of the rear tire, getting ready for a long trip this week I noticed what I thought was a paint line on the tire and it turned out to be thread in the tire all the way around.
This tire is less than a year old might Dunlop cover it

 

It's you...


Looks like the normal paint/ink to me...Enjoy your trip

 

Look at the third picture and you can see a little piece sticking out and there are several like that all around the tire

 

Well, you're the one there...If you think it's a thread, call dunlop like you said.

But it wouldn't be showing from wear


BTW, Make sure you send them that picture. They might say "Oh that, that's a ________"

.

 

Tire is being replaced, this was the Dunlop American tire. Another one is being put on.

You could actually take a small screw driver and it would catch the thread. Now would it cause an issue? Didn't want to find out.
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My response from Dunlop was ,basically stop doing burn outs and replace the tire when the tread gets below X depth.
I Almost shot back, it's an 88 inch twin cam... Burn outs, need more power for burn outs..
After pics sent there's been no response....
O well
I'm covered.

 

Finally got a call from Dunlop, they are good people. Got information and contact information to return the tire.
New tire already installed on bike, all is good for me!

I will continue to run Dunlop tires do to their friendly service and understandings..