Wider front tires M7040 Kubota

sixdogs · Oct 31, 2019

cattltrkr said:
First post here. Thanks for all the info gentlemen! I just swapped my industrial R4 14.7-17.5l fronts and 16.9-24 rears over to 360/70r20 with new custom wheels and 16.9-30 rears with new center disc and wheel. Purchased at e.d.Miller Wauseon, OH. Mr. Ed is a pleasure to work with, he has done this several times. Tires are BKT Agri Max RT765 8ply 5500lb load capacity, much better than any R1 9.5-24. Cost mounted and ready to go on your tractor was $1843 for 2/fronts plus freight. I'll post pics once I get them mounted. Ratio works out to about a 2.2% lead on the front going straight. Hope this sums up all the necessary info for anyone thinking about doing this. I had to gather data from several posts to come to this point. Thanks to Kenbike, foremanEtexas, Ovrszd and others that contributed!

Can't wait to see the pictures. Any idea how much just the front 20" wheels were?

cattltrkr · Oct 31, 2019

$360. Kubota dealer wants 382 for 9.5-24 stock rims as a point of reference.

sixdogs · Oct 31, 2019

Thank you.

ovrszd · Oct 31, 2019

cattltrkr said:
First post here. Thanks for all the info gentlemen! I just swapped my industrial R4 14.7-17.5l fronts and 16.9-24 rears over to 360/70r20 with new custom wheels and 16.9-30 rears with new center disc and wheel. Purchased at e.d.Miller Wauseon, OH. Mr. Ed is a pleasure to work with, he has done this several times. Tires are BKT Agri Max RT765 8ply 5500lb load capacity, much better than any R1 9.5-24. Cost mounted and ready to go on your tractor was $1843 for 2/fronts plus freight. I'll post pics once I get them mounted. Ratio works out to about a 2.2% lead on the front going straight. Hope this sums up all the necessary info for anyone thinking about doing this. I had to gather data from several posts to come to this point. Thanks to Kenbike, foremanEtexas, Ovrszd and others that contributed!

Great post!!! Welcome to TBN!!!

This will be an excellent addition to this thread. Please post pics when you can!!!

ptsg · Oct 31, 2019

How common is to get R1 radial tires in the US? What's the main reason for the diagonal R1, other than the cost?

We get them in every tractor from SCUT up to big AG tractors. Besides giving a very cool look to the tractors, they also provide better ride and traction with less compaction.

ovrszd · Oct 31, 2019

Radials are very common. Actually, might be more common than bias ply. Especially on AG tractors.

I have Radials on my M9540. I really like them. Better ride. Better traction.

Canada has been using R1W tires for a few years now. They are just beginning to show up in U.S. I replaced the 12.4Rx24 front tires with R1W tires last Summer. Gained 1.5" section width.

cattltrkr · Nov 27, 2019

Here are a few pics. First time uploading, hope it works. Talk to Mr. Ed at e.d.Miller tire and he can set you up. Happy Thanksgiving!:turkey::turkey:

ovrszd · Nov 27, 2019

Nice!!! Can you take a shot from the front showing the front and rear tires to get a good comparison.

What size are these tires?

Thanks for the pics!!!!