It looks to me, Sixdogs, that with the wider rims you will be giving up the "Ag type" rim. Those rims don't look to be able to adjust the center disk on the outer rim.
No - those rims look as tough as a rhino. I just meant - if you are row cropping and need to adjust the width of the front wheels. The OEM rims on my M6040 are fully adjustable. I have the fronts set at one notch wider than neutral and the rears set out as far as possible.
Wonder what the rims would cost for your rear tires.
You know, you don't have to put radials on the front. This isn't a car and you could save a bundle and accomplish nearly the same with radials on the rear and bias ply on the front. For the kind of work most of us do, it's no big deal. You could get the wider front wheels and put an equal size bias tire on. JD mixed radial and bias on 5000 series tractor a few years ago as a common event. I do it now.
This would work better when the cost of a wheel drops to the $135-$150 typical of other implement wheels.
I like the way your thinking Sixdogs! I want the wide front tires but don't want or need all new radial tires.
What size bias tire would be the equivalent to the 360/70R20 wide front tire which I could put on these rims and still allow me to run the factory 16.9-30 rears on my 7060?