20" dually wheels
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
Wheel size does not affect rpm. It is the tire size you have mounted regardless of rim size. You can get the same effect by increasing the circumference of the tire on stock wheel. The problem with larger tires on a drw is the bulge and possible rubbing when load on the rear tires.
BTW, the Ford drw wheels are 19.5" not 20". The standard tire on the 2015 was 225/70Rx19.5G.
BTW, the Ford drw wheels are 19.5" not 20". The standard tire on the 2015 was 225/70Rx19.5G.
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New User
Joined: Aug 2012
Posts: 24
Likes: 0
Thanks for responding but maybe my question wasn't stated clear enough. I have a 2016 KR F350 with stock 17" rims and don't like the looks of the setup since IMO there's too much open wheel well showing. Plus I like the tire options better in the 20" rather than the 19.5".
Logistics Pro
Joined: Aug 2006
Posts: 4,477
Likes: 4,069
From: Raceland, La.
You would have to go with a 35 or 37 inch tire to fill up some of the wheelwell openings. Then a whole new can of worms opens up!
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