I bought rims from nissan 370z.. Rear is 19/10.5.. Someone gave me tires 255/30/19 pirelli pzero run flat.. Will this cause any problem when trying to balance them? Thank you for all the help.

 

that isnt stretch at all. should be good to go

 

Well run flat tires have much much stiffer sidewalls compared to regular tires making them harder to stretch. The tire you got is a little small for the GS. A 275/30 would be a more appropriate. What is the offset of the 10.5? If youre looking for a decent stretch on a 19x10.5 I recommend 235/35 or 245/35

 

I have a 235/35/19 on a 19x10 decent stretch but will be going with a 225/35 next time.