Hey fellas, I have called all my local kubota dealers to inquire about switching to r4 tires. They have all told me to go to a tire dealer. I currently have r1s on my 4wd l3010 and they just dig to much in the yard, especially with loader work. Fronts are 7x16 rears are 12.4x24. To me, the tractors I have seen with r4s typically have wider tires than the r1s. The dealerships have said I can run the same wheels and just change the tires, but wouldn't I need new wheels also? Because the tires are much wider? Any advice or help and what sizes I would need and where to get them from. Thanks yall