Wider wheels/radials for M7040/M7060 Kubota now easier. FYI

[PSDStu]

I forget once but forgot so this is a guess. I think 12X20 or 12.5X20 was the size. You need to know the rolling circumference (listed with each tire size) of the 360/70R20 and find a size comparably close. BUT, you need to double check the numbers to make sure. For that you need the "front axle ratio" of the tractor and I have the M7040 written down somewhere. It's also all over this site in various places. The numbers are to make sure the front tire runs 2% to 5% faster than the back tires. It's not as difficult as it sounds and once one of us does it, the numbers are good forever. It might already be done and posted somewhere on the TBN.

For those buying radials, there are big differences in them. I'll bet you can buy one of those 360's mentioned from $425 to $850 for a top of the line Firestone. I put radials on everything I can because I drive over septic systems frequently and in the same day maybe pull a hefty chisel plow. A high dollar radial will seriously out-pull a low buck one. They both float about the same and any radial is much better than bias. For me, when wheel prices come down to that $150 area, bias front tires will work fine for me. That's what I think now but do love radials. I've done threads on them.

The easy way out is to buy the package from Miller Tire. I've done biz with them and they are a great company with great people.

Is it safe to run the 360/70R20 wide front tires and keep the 16.9x30 bias on the rear?

 

[TexasBoy]

Anyone have a picture of their M7060 with the 360/70R20 on it?

I have the 320/85R20.

 

[ptsg]

This is a typical setup over here. R1 Radial tires. I don't know the size though. Some also have a slightly larger radial tire.

 

[TexasBoy]

That is a 320/85 also.

 

[ptsg]

Good point. Couldn't quite see on the phone.

I know some will have a slightly wider tire on the front.

 

[sixdogs]

That is a 320/85 also.

Yours was from the factory so it came with the 320/85R20?

 

[TexasBoy]

Yours was from the factory so it came with the 320/85R20?

Yes, I got the cast wheels / radials option.

 

[Thunder chicken]

These are 360/70R20 fronts with 16.9x30 rears.

Anyone have a picture of their M7060 with the 360/70R20 on it?

I have the 320/85R20.

 

[Farmer495]

View attachment 633787 These are 360/70R20 fronts with 16.9x30 rears.

Interesting you have an orange Quicke with Quicke decals instead of an orange Quicke with Kubota decals.

 

[Farmer495]

Anyone have a picture of their M7060 with the 360/70R20 on it?

I have the 320/85R20.

I have them on a 40, metric R1W radials on all 4 corners, they were standard equipment on Canadian market tractors. Sales lit shows narrow bias ply, every M7040 or M7060 on the lot is on metric radials.