Yanmar
All the credit goes to Bob Koerber from n4bk.com
Bob had a nice YM1500 and 20 acres to mow. The Ag tires were not the ideal tires to use, but turf tires are. Bob came up with a plan. In his own words from his blog and the re-found pixs.
Here are the new rear tires Goodyear 36X13.5X15...