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Threads coming off tire

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Threads coming off tire

Old 04-27-09, 09:06 AM
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nesdog
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Threads coming off tire

I am running GP4000's with roughly 2500 miles so far. The tires are in good shape.

While cleaning the wheels yesterday, I noticed a couple of threads on the sidewall just above the rim that had come loose, with about 4" hanging free in a loop. If I pulled on the thread, it would have unraveled all the way around the tire. (I didn't....I clipped them instead). Noticed the same thing on the other tire as well. The brake pads are not touching the tire at all.

I'm wondering if this is normal with these tires. I never had this on the Ultrasports I ran for years. Does this compromise the strength and usabilty of the tire?
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Old 04-27-09, 09:41 AM
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Is your brake pad rubbing the tire?
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Old 04-27-09, 09:45 AM
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I'm kind of noticing the same thing with my GP4000S, but not to the extent where the threads are coming off themselves. I can just barely distinguish a break in the smoothness of the sidewall right above the rim, increasing the likelihood a thread will expose itself. And they've only seen about 250 miles... I do run them at their max recommended PSI (115-120) frequently, though.

I'll post photos later because I'm about to head out for a ride.
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Old 04-27-09, 10:46 AM
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Brake pads are cleanly away from the rubber. I run about 95-100 lbs in the tire.
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Old 04-27-09, 10:52 AM
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I think this might just be something that happens to continental tires.

This happened to my gatorskins after about 2 thousand miles... the brake pads weren't rubbing the tires and I always had them properly inflated
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Old 04-27-09, 11:08 AM
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Does it call for replacement? I also e-mailed Conti for advice but no response yet.
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Old 04-27-09, 11:10 AM
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How many months is 2500 miles? The rubber will slowly deteriorate from exposure to sunlight and air pollution. This isn't a problem for people who ride 100 miles/week (5000 miles/year), but if 2500 miles is more than 1 year for you, you should be on the lookout for cracks, etc. in your tires.
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Old 04-27-09, 11:27 AM
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Same thing happend to me with about 400 miles on them.
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Old 04-27-09, 11:58 AM
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Originally Posted by johnny99 View Post
How many months is 2500 miles? The rubber will slowly deteriorate from exposure to sunlight and air pollution. This isn't a problem for people who ride 100 miles/week (5000 miles/year), but if 2500 miles is more than 1 year for you, you should be on the lookout for cracks, etc. in your tires.
These tires were brand new last June.
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Old 04-27-09, 01:01 PM
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I had something similiar on some Hutchinson tires and got a replacement after aobut 600 miles.
had to send in the old tire but used the important phrase "I don't feel safe" and they shipped me a new tire in no time.
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Old 04-27-09, 02:37 PM
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Weird, I just noticed the same thing on my GP4000 tires yesterday. They have low miles, but are about a year old. Do they need to be replaced?
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Old 04-27-09, 05:57 PM
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I think it has happened to every GP4000 ever made, it no cause for concern.
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Old 04-27-09, 07:00 PM
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it's the sidewalls. they come with a preset self-destruct.
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Old 04-27-09, 07:28 PM
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I've ridden GP 4000 and GP 4000S and both have this same issue. So far, I have not had any problem with tire reliability or performance. I try to trim them when they got long so they don't wrap around something as the tire spins.

Enjoy the ride and don't worry.
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Old 04-27-09, 07:44 PM
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I had the same problems with the 4 seasons. They kept showing up after almost every ride. I just changed them out after putting 3500 miles on them. I put on the 4000s to try them out. 400 miles and no thread hanging off of they yet. I've read a lot of stories of that happening, but I don't think it hurts them. It didn't on mine anyway.
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Old 04-27-09, 07:50 PM
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I haven't noticed threads coming off but I last weekend I did have a bead come out of the tire on a short section - caused a pretty good tube explosion and a walk home. It's the first time I've had any complaints with a GP 4000, though. I think they're generally good, durable tires.
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