[greencrew]

Originally Posted by APT

Looking @ Tirerack for aftermarket wheels, those that are offered in both 18" and 20" for the same design vary from 3 to 7 pound delta. The lightest 18" weighs 24# and the heaviest 20" wheel weighs 43#. That is significant!

I really have not heard people complain about the OEM 20's and FE. If I were in the market for a new truck, I'd get the 20" wheels. The proportions looks the best to me on the new trucks.

I think in the simplest of terms it does come down to the weight of the wheel. I know size matters, but generally speaking, the larger wheel weighs more, and the larger tire weighs more.

Is there any way to find out which Ford factory OEM rim weighs in the least? Which Ford OEM wheel and tire weighs the least?

I've looked at sizes of Ford OEM tires, and the 275/55/20 sizes in the smallest with a circumference of 93.4, and second the 235/70/17 at 94.1. I'll agree with Phil that the low profile 275/55/20 is probably heavier.

On the large side, the biggest goes not to the 20 inch but to the 255/70/18 with a circumference of 100.7, second is the 275/55/20 at 100.2. I would say that is why the 18 and 20 are in the same towing category.

I'm interested because I run the 20's on my truck, and wonder what they are costing me in fuel. They look great I know, but I like to drive too.