They are 17x8 +35 front and 17x9 +35 rear. The tire sizes you are using will fit these wheels perfectly. Also, the rpf1 needs special attention with offsets up front once you hit 9" wide or more due to the design. I can help you with spacing if needed, but I did not need any spacers up front for this wheel when I used the Z1 13" bbk. There was plenty of room left over. Feel free to send me an email and I will also make a post in the classifieds for the wheels.