Spec sheet for MX5100, from Tractordata.com;
Standard tires (ag): Front: 7.5L-15. Rear: 14.9-26 (2WD)
Front: 9.5-16. Rear: 14.9-26 (4WD)
Optional tires (ag): Front: 7.5L-15. Rear: 13.6-28 (2WD)
Front: 9.5L-15. Rear: 13.6-28 (2WD)
Front: 9.5L-14.9-26 (2WD). Rear:
Front: 9.5-16. Rear: 13.6-28 (4WD)
Lawn/turf front: 29x12.50-15
305R343
Lawn/turf rear: 44x18-20
610R470
Industrial front: 12-16.5 (4WD)
Industrial rear: 17.5L-24 (4WD)
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From firestoneag.com;
Here is something ALMOST counter intuitive;
Rolling circumference of the 17.5L24 is SLIGHTLY less than for
the 17.5LR24 (the radial version) although the diameter is slightly larger.
17.5L24 diameter 48.9, rolling circumference 145
17.5LR24 diameter 48.7, rolling circumference 146
R1s
13.6x28 diameter 51.5 to 51.7 according to tread pattern.
rolling circumference 153 to 154
--------------------------Conclusion------------------------
As in other fields(pun) boasting an extra 4 inches turns out to be barely 2 1/2 and only half of THAT is relevant to height (ground clearance).
{There is a very old joke somewhere about why women can't read maps, to SCALE (-: }
As to what OTHER differences they make;
1) Ags typically have a lower load rating, which can really MATTER for FEL work.
2) Industrials are harder wearing.
3) In THIS tractor's case industrials are significantly wider and will therefore rut less and "float" better.
4) If you ever decide to fill them with fluid the R4s could take more ballast.
Clear to me, but your uses may be different.
I would in any case not pay an extra kilobuck for industrials.
Hint/clue try to find out which are the most popular tire with that dealer's customers, go with those.
Then see if you can snarf up a set of the others as take-offs for cheap.
That way you get the best of both (-: