Jamg2412

I got the GP5000 TL in 32mm for my bike. Difficult to install but I did it, front easy to install, rear very hard. Now, I have the following issue. The tyre is wobbling and I tried to seat the tyre at least 3 times. Wheel is true and there is no problem with the wheel bearings. Then, I decided to inspect the tyre in detail and I found a strange depression (I don't know how to call it) on the sidewall. Any experience with this problem?

Thanks for the help.

Sidewall affected.

Maybe is worse than I think.

WhyFi

I'm not sure what problem we're supposed to be seeing, maybe it's just hard to catch with the camera, but what I do see is the witness line; that seems to indicate that, at least on this side and on this section, the bead is in place properly. If the opposite bead is also seated properly and if there's a casing irregularity in that area that doesn't go away after being inflated for a while, I'd look in to an exchange.

Ilbiker

The depression is hard to see. Agreed that if it is properly seated all the way around on both sides and doesn’t go away in a day or so, I’d look to get it replaced. If you bought the tire locally, maybe bring it back to the shop mounted so that the depression can be seen. I’m running the same tire on my Domane and have not had any issues after 500 miles.

Iride01 

I see that in many tires right after I put them on. Particularly the new tires I just put on. By the time I've flatted, fixed and remounted them a few times, It's either gone away or maybe I just am not looking close enough.

Tires do take a little time to get back into shape after being folded up for so long.

guadzilla

Jeez, i have never even thought to look at my tires in such detail (that lack of attention to detail is also the reason I wont touch rebreathers for scuba).

Bah Humbug

I too can't really see the issue in the picture, but it's interesting that it appears to be either at or right next to the valve.

PoorInRichfield

Not to be "Captain Obvious", but is the bead seated all the way around? I.e., when you installed the tires, did you use an air compressor or high volume pump to fill the tires with area until there is a sold "pop" as the beads are seated?

I mounted a pair of tires earlier in the week that have "skinwalls" (I.e., brown sidewalls) and noticed that the sidewall didn't look even all the way around and thought there was a tire defect. The actual problem was that the bead wasn't seated properly. Now that it is, the sidewall looks even. It's hard to notice this unevenness on solid black tires with black sidewalls.

I'm not sure how else you'd notice a "wobble". I don't think small variances in the rubber would make any difference at speeds a normal cyclist can obtain. I have the same tires and so far they've been great... other than the initial install which was a doozie due to the tight bead.

Jamg2412

More than the problem from the image is that the tyre wobbles. I don’t know if it is related with the wall problem. It is well seated. I have done that at least 5 times. So, I changed the tape and no change. Also try to seat the tyre in a different position. No change at all. Now I am claiming the warranty and waiting for their response.

Sy Reene

Not sure you said.. is wobble on both wheels or just one of them? Obvious thing to try if just for one of the wheels, is swap tires front to back.. does the other wheel now wobble?

Pizzaiolo Americano 

The witness line is perfect all the way around on both sides?

Jamg2412

Yes, the line is uniform in both sides. I will upload a video to show this and the tyre problem.

Jamg2412

This is a video of my problem with the rear wheel and tyre.

sfrider 

For due diligence, check that both sides of the rim are circular. Hold a pencil or something with just a little space to the rim against the seatstays, and rotate the wheel.

But, it's almost certainly a tire defect.

Also, be judicious with putting a hydro brake bike upside down... you risk having air bubbles migrate to the pistons.

AlmostTrick

It's the tire. I had that once on a Gran Bois tire. Vendor made me send him video and then the tire itself so he could try mounting it up. He sent me a replacement tire. By the way, great job on the video! It clearly demonstrates the problem is not the wheel, or the bead mounting.

aclinjury

Defective carcass.
Solution: send the damn tire back for warranty

Paul Barnard

I have that problem with one of my tires right now. The vendor, Bike Tires Direct, wasn't interested in helping me when I sent the photo.

Sy Reene

Just curious.. in what way weren't they helpful? Seems like they have a straightforward process as per below, though I guess it gets more problematic if you bought the tires and stuck them on a shelf for a while to use later. These stories like the OPs/yours suggest that, while quite a hassle, that it makes sense to mount newly bought tires and make sure good to go before putting back on the shelf for future use.

https://www.biketiresdirect.com/returns

Paul Barnard

I mounted them shortly after I bought them. When I first started riding on them, it seemed like there was a steady thump, thump, thump, but I wrote it off. About 2 months later I detected the defect when I finally tired of the thumping. I took a pic and sent it to them. They tried to blame it on mounting or on my rim. That despite the fact that it had been on 2 different rims and mounted 3 different times. Once on one rim and twice on another.

Jamg2412

Just to close this thread, I got a warranty replacement for this tyre. Good customer service from the bike shop.

Bah Humbug

Glad you got it sorted! And thanks for letting us know how it finished.