Quote:
Originally Posted by CaptainYooh
Question to the auto-mechanically proficient:
My SUV has 275/50/22 tires installed. I'd like to go to wider tires sized 305/45/22, which are equivalent to mine in diameter, so no issues with the computer, rpm's, mileage etc. 305's are 30mm wider than my 275's. I'd like this extra width on the outer side. How do I pick the right rims to ensure that the width doesn't go on the inside instead and rub against the underside and during turning?
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Thats a big step up in width, which seems a bit odd for winters or even summers for an SUV.....but to each their own. You'll be wanting to look at the offset of the rim. All things equal, a larger rim width* (not tire width) would need a smaller than stock positive offset (or a negative offset) to keep the "inside" of the rim in the same spot. But be aware when you turn the outside can also have clearance/rubbing issues as well (since it will turn into the wheel well).
https://www.1010tires.com/Tools/Whee...et-Calculator#
* as mentioned, dont think of tire size alone. A 305/45/22 can take a huge variety of rim widths - 9.5 to 11.5" wide. Your stock tires can run from 7.5-9.5" as well. So both tire width and rim need to be considered when considering offset and fitment since the rubbers can "overlap/extend past" the rim on more narrow rims for a given size.
https://tiresize.com/calculator/