Hey I don't **** about tires beside I think the millde # mean it's wider tire. Anyway what is the big difference between these 2 tires? {1} Is a 225/45-17 zr. {2} Is a 235/45-17 zr? Can please explain if there is a big difference? Thanks, alot khris

 

Check the following site. It will give you all the dimensions you need for each make/model. You'll see the 235 is wider and has a larger OD.
www.thetirerack.com