Ok I have an 05 Stratus R/T Coupe and i was planning on keeping the front Rims 17 but i was wondering what size tire i should have the rear Tires since i'm upping the Rims to 18's ,or should i just keep them 17?

Any help would be appreciated

 

Just wondering about your decision to upsize your rear rims only? I would think it would look kinda weird (of course it may not, to each his own right?). I would stick with 4 matching rims so it looks consistent, and makes tire rotations much easier, prolonging tire life.

A good reference place for tire sizing is tirerack.com, it will show you your stock tire size, and tire sizes for the next sizes up to what fits your car.

 

Yeah i've seen the different sizes i was more or less wondering which size would go good with stock sizes

 

Still not sure what you're asking... The outer circumference of the tire needs to stay the same, so the larger the rim, the lower profile the tire needs to be to maintain that circumference. Going with a larger circumference, can affect your speedometer and handling characteristics.