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They're going to stick out of the guards by about 3/4 inch.

I have 17x8 +35 with 235s. They fit just inside with no need to roll. So they have a little clearance. The outside edge of the rim is 66.6m from the hub face.

17x9 +20 will have the outside edge 94.3mm from the hub face. That's another 28mm out. Take off 10mm of clearance that I have, that's your 3/4 inch poke.

The inside clearance will be fine.

  • 2 weeks later...

I just take the rim width in inches and +1 then convert to mm.

Round that to the closes tire size and you'll be sitting square-ish

so if you're running 8.5 that means 9.5 = 241 so 235/245 will do fine unless you're wanting something differen.t

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