TractorLegend said:
I agree with Master Wallace...the ags are narrow as razors and impeding stability in your case.
Wider the better to a certain point when weight bias is taller.
Actually I think the ag's are only 4" narrower than the R4's. and the wheels for the R4's aren't two piece and if I remember correctly (always gets me in trouble) they are deep dish and installed stock so the they are their widest.
I agree that a 1" increase in center of gravity would be a negative when considering operation in hilly terrain, however, IF the ag's actually provide a wider stance then it would be effectivley offset.
Narrow tires are good for some things (mud, snow) and deep lugs generally found on them generate more tractive effort than most shallow industrial tread patterns as long as sufficient weight is present. And if the narrow tires can be set to a wider stance than wider tires that is what matters (as long as increased height of CG is proportional).
I live in the foothills of the Appalachian mountains. It is very hilly here so maximum width is more important for me.
If you want to minimize damage and decrease ground bearing pressure then wider tires are more important. Width of stance, for the most part, is no longer a consideration at that point.
From Jeff's pictures it appears the ag tires will be sufficient for me.