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Tire Bulge(7 posts)

Tire BulgeGiles
Mar 8, 2002 1:57 PM
My rear tire a Vittoria Corsa CX has a slight bulge in the side where the tire and rim meet. I deflated the tire and it looks like it is due to the bead separating or cracking from the rest of the tire. This is very small. Maybe a 1 -2 inches. Is there any problem with riding a tire in this condition? Will it blow out or what will happen?

re: Tire BulgeLone Gunman
Mar 8, 2002 2:02 PM
I had a similar bulge on a new set of Conti 3000's last year. A mechanic suggested that I replace the tire and described the problem as the threads breaking and therefore a slight bulge caused by hitting a pothole or something. I have not replaced that tire and keep an eye on it to make sure it is not getting worse and it is on the rear wheel so even if I had a failure I would not need to steer through it.
re: Tire Bulgebrider
Mar 8, 2002 2:02 PM
Replace it. You don't want it blowing on a descent (or out in the boonies, or in a tight pack, or...).
don't ride on it that way, but don't toss the tirebigskulls
Mar 8, 2002 2:30 PM
I had the same problem installing the same tire on a new set of open pros I had built recently (did you buy the tire from Performance?) You don't need to chuck the tire.

What was happening to me was after I pumped the tire up, it looked fine. Then 3 minutes later, there's this huge bulge in the tire. I figured it was the bead of the tire not sitting correctly, but I checked that and it seemed fine. I played with it for a while and after a few times letting some or all of the air out of the tire, I did manage to get it to sit correctly. I've ridden a few times since then and had no problem.
re: Tire BulgeDINOSAUR
Mar 8, 2002 3:20 PM
I had a similiar problem with Performance Forte Pro Kevlars. I would develope a bulge on the sidewall usually around 600 miles. I went through two tires with the same problem and I just lowered the tire pressure 5 psi (125 to 120) and I didn't encounter the problem again.

I wouldn't ride on it...
Don't ride it but don't toss it..Jekyll
Mar 8, 2002 5:45 PM
I don't think its worth the walk home to keep riding something like that. Even if it lasts how comfortable will you be going down hill at speed while wondering if the tire is about to go? Do you want to find if you can indeed "steer" through it?
I always end up with tires with cuts, etc. I just put them on a spare wheel I pop in when I'm on my trainer. Trainers eat tires for lunch so this way its a win win.
re: Tire Bulgeguido
Mar 8, 2002 7:14 PM
I've gotten bulges in clinchers, too, worse when aired up really hard. So I never go above 110 psi, and always use 25 or 28C. Only once did one blow, however, and that was long after I could feel the bulge going around. All were bead separations along the side walls. The blow was from separated side wall threads from tire being scuffed on a concrete curb.

My .02: if you can feel it, trash it. It'll only get worse.