you want to try to keep the same diameter as the stock tires which is 26.3". You can go alittle taller, but not taller then 27". I currently have 245/40/19 which are 26.7" that's a sidewall height of 3.9".MAGUS1 said:Blitz, I have a 2003 Altima, and I had put 19's on it, but the rain in San Francisco put a million pot holes out there and as a result my rims got tore up, I went back to the originals until I get some new ones. My question is how much meat can I put on my tires if I get 19's again, and how much meat for 18's..... this is where I am thinking that this might be a better bet to help me deal with the pot holes that will pop up from time to time.....and when say meat I mean the width from the tire to the rim as I drive down the road. Thanks for the Advice.
Use the tire calculator to get tire diameters