We have yet to see a new 4Runner (prototype) running anything less than an 18" wheel. Both the TRD Pro and Trailhunter were sporting 18s and the Limited had some 20s. I believe though that we should be able to fit some 17" wheels on it just like we can the new 4th Gen Toyota Tacoma. I am running a 17" Relations Race Wheel on my new Tacoma with a +12 offset. The bolt pattern is the same with this new 4R as it is for the Tacoma, so a good bit of wheels from the past and present should work for it.
The only con though if you have an older set of aftermarket wheels on a 5th Gen that you were hoping to use on the 6th Gen, is the offset may be too aggressive. This new 4R has a wider track than the last gen so a negative or even a zero offset wheel is very aggressive with poke depending on tire choice.
It's this way on the new Land Cruiser and Tacoma, where the popular wheel offset choice is a +25 right now for a pretty flush look with 12.5 wide tires. I'm curious to see what everyone runs in the future! Can't wait to see it.
The only con though if you have an older set of aftermarket wheels on a 5th Gen that you were hoping to use on the 6th Gen, is the offset may be too aggressive. This new 4R has a wider track than the last gen so a negative or even a zero offset wheel is very aggressive with poke depending on tire choice.
It's this way on the new Land Cruiser and Tacoma, where the popular wheel offset choice is a +25 right now for a pretty flush look with 12.5 wide tires. I'm curious to see what everyone runs in the future! Can't wait to see it.