You still may want to have the Rims in hand that you will be using. You may end up an inch or two different than the 7 1/4 for a perfect fit. My Outlaw 2's have about a 5" backspace and are almost perfectly centred. If you end up with say a 3" backspace then you may want to go narrower when do it. I hope that makes sense/Helps you. Gerry