I copied / pasted I sent to a tire dearler to give you the info on the wheels / turf tires presently on the 1620:
Thank you for responding to my inquiry. Per the owner's manual, the turf tires are:
Front - 25-8.50-14 4PR
Rear - 13.6-16,R3, 4PR
The rims, both front and rear have 6 bolts
Per my measurements:
On the rear rims, the space between the bolts is 7" and the center holr is 4.5"
On the front rims, the bolts are 4 3/4 " apart and the center hole is 3 1/16-1/8"
This is what I copied off the tires themselves:
Front - 25 x 8.5o - 14
Rears - 13.6 x 16 on 12" rims
For R-1 / Ag tires, the anual says:
Front - 7-14 R1 4PR
Rears - 11.2 x 24 R1 4PR
Again, I would prefer to get the r! / Ag rims and tires but I could be persuaded to go with the r4 industrials on the turf rims as an in between measure.
Thanks you
David Hoy Attica NY 14011
If they actually fit, perhaps we could ship them - thanks