first, i want to keep g37s stock wheel size (19x8.5 114.3/5 43 , 19x9 114.3/5 45) and don't want to change my tires (225 45 19, 245 40 19) which i changed last week. I'm looking for SSR wheels. type C and type F. i can buy front wheels for same size as 19x8.5 and 114.3/5 except offsets(38, 48) . also they have 19x9.5 for rear instead of 19x9 which is stock size also offsets don't match either(22 30 38). i'm totally don't understand about these numbers. what should i do? is it okay to buy? this is my first time to buy rims so if you guys can help me please leave answer.

 

Those tire sizes all work with those wheels, offsets do not really effect the size tires and the width of wheel. I advise you to go with the +38 offsets based on the figures you gave...

 

I thought this thread title was about a different type of size issue haha.