Low Profile for 2010 G37x Sport Sedan

[oldpond]

Hi folks,

I have a set of MSR rims that came with my G37x. They have General Exclaim UHP 245/35/ZR20 95W 690Kg/1521LB tires on the front and General Exclaim UHP 275/30/R20 97V 730Kg/1609LB tires on the back. The tires came installed on the rims when I bought the car, so in the spring I had Nissan install them. They had quite a bit of trouble with the tire pressure sensors, and in the process (I believe) damaged the inner side wall of the back ones. Long story short, I have a slow leak and need to replace the back tires.

My stock rims have my Michelin X-Ices on them, and I'm not stuck on these rims. I'd like to go with something a little sexier than the stock rims in summer, but still have my tire pressure sensors working. I do a LOT of highway driving (1200 Kms every two weeks). When I first got the car it had a tendency to jump all over the road. I assumed it was the square profile Dunlops that came stock, and given the roads are very seldom flat up here, I went with the more rounded Michelin's for winter driving. The General Exclaims that are on the MSRs are a little more behaved than the Dunlops, but they are a little more energetic than the Michelins. So, suggestions?

Also, I read the alignment thread, and I'm a bit worried my usually trusty Nissan guys may not be as savvy with my G as they should be. I did get them to do an alignment when they installed the MSRs, but I wonder if I should go to Infiniti to get another one once I replace these rear tires.

[audtatious]

For summer I've been quite happy with the Pilot SuperSports. They do seem to tramline a bit but that may be due to my camber. Otherwise they are phenomenal in the rain and have great dry-weather traction.

[oldpond]

I've never heard the expression "Tramline" before. Thanks for that. Glad to know there's a word for it. Should I have the techs look at the camber?

[audtatious]

Your local tire shop is probably better equipped for a proper alignment than Nissan.

If the highway in your area is grooved for rain then you can easily have annoying tramlining. Truckers ruts as well.

[oldpond]

Lots of trucker ruts on the Transcanada Highway. I also notice even a slight grade in the road causes it to drift to once side. That's probably expected given the nature of this car. Thanks for the advice, audtatious!