I have 18x7.5's with kuhmo ecstas 225/40/zr and run a religious 32 psi and im on my second set in 6 months because i keep getting these "eggs" in my sidewalls. the tech at my dealership spotted the first one and said i was in danger of a blowout so i got a new tire ('bout 6 weeks ago), since then it has happened to my other 3 tires so i had to replace them. two of them were from pot holes on these ****ty louisiana roads i even chipped a rim on one. those two were my fault and i could immediately see the egg no question about what caused it. the other two, i have no idea how they got there, they werent there after i hit the pot holes i checked very closely. anyway im wondering if i went up to a 225/45 if this would help or is this a problem with kuhmo tires am i doing something wrong? please help any ideas.

 

Not the tire size, I ran 225/40/18's for over a year no problems.

 

It could possibly be the tires, but it sounds like you need to be more careful on the LA roads. Like ValueTL, I have 225/40s and I have had no problems either....knock wood.

 

try putting the air pressure up to around 35 to 40 with that low of a profile and be carefull of all pot holes

 

I had the same problems with my Kumho's as well

 

I also had the same problem with them damn Khumo tires...had to replace 3 tires before switching to Nittos 555 and had no further problems......

 

heard a lot of problems about the Khumo's, so I went with Nitto 555 tires......so far so good

 

Are sidewall eggs those divots in the sidewall of your tire that look like somebody sliced an oval shaped chunk out of rubber? I just got one of those on my stock tires. Is it something I should just rubber cement it? I'm sorry, I know very little about cars.