BKT tires are Indian, dot not feather. Not Chinese if we are ranking by third worldibility
Problem with Ag tires is the lack of manufacturing anymore. I have a Deere with backhoe (still technically Ag) that uses 18.4x28. In the 25 years I have owned it, the tire manufacturers have gone from 10 to 2. Firestone (no longer R4 tread) is the only 1st world brand and I have no idea where they are actually made. Samson maybe. And now I found BKT. Goodyear no more, Bridgestone no more.
Problem with R1 treads is they are 6 ply whereas the R4 treads are 10 or 12. Still sliced one last week that had less than a couple hundred miles on it. Bad luck. In the middle of a job for a neighbor in the middle of his drive. Worse luck. No tires available for weeks. Worse still. Remembering wife kept one of the old tires for a planter - using it as a spare to finish job until new tires are located. Win.
Found tires this morning in MA. Shipped to Colorado for only $2300.00. Only? Win? Last two of only 3 in that size in the US. Definite,but expensive, win