Been having a big problem with my car tramlining on certain roads when running my summer wheels. The tires I have are Goodyear f1 supercar which I would completely assume is the problem but I had the same issue with the bridgestone potenzas I had before as well. I picked these because they were practically free and the size is 265/40 that I run on a 19x9.5 +40 square. My question is if anyone has an idea of any suspension components that could be amplifying the problem because at certain points the wheel can be ripped to the left or right and the car just isn't very fun to drive anymore. I have a fresh alignment from a very reputable shop which gave me a little negative camber and toe in to try and combat this but it didn't seem to help. Any suggestions would be appreciated before I ditch the tires for something more daily friendly. I have an 08 G37 coupe if that matters too.

 

I'm in the same boat. Not necessarily the tire choice but rather the size ie width. With stock 225 I had none and it was an aggressive potenza s04. With an all season in 275 it so bad.

 

Yeah I thought that too. When I buy new tires I think I'll drop down to a 245 up front. Thought it would be nice and convenient to have square tires that I could rotate but I guess that idea is gone. I'm having a friend try my wheels on his g35 coupe tonight to see if the problem is just as severe on his car.