The stock size has been 17" since around 2007, but 18" has come on the market recently. So yes, your 2017 has 18" rims, since the R18 means exactly that.
My '08 JKU came with 255/75R17, although most before & after were 245/75R17, since they changed the size, then changed it back again. At the moment I have 265/70R17 tyres on it, though as the 255 are about as rare as hens teeth!
__________________
Jeeps: Lego for grownups!
|