R1 Rears?

   / R1 Rears? #1  

VT365

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Oct 1, 2007
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I'm looking to change the rears to R1's. Is there a preferred brand/ply rating? I believe currently I have R4 Titan's 8 ply. Any suggestions would be helpful.
 
   / R1 Rears? #2  
VT365:

If your model tractor is 4 wheel mechanical front wheel drive you will have to change both your front and rear tires and probably rims in order to keep the correct wheel circumferences for the gearing. I have 8 ply rears and 6 ply fronts. I believe that my R-1's are Titans. Jay
 
   / R1 Rears? #3  
Most of the tires I've seen for compacts are Titans. As far as ply rating, it depends on what you want to be doing with the tractor. When I ordered the R1s to come with mine, I got the upsize tires and the higher ply rating, both front and rear. I use mine in the woods a lot and wanted to minimize the chance of a puncture. I have 4 plys on the back, 6 on the front with the loader. The rears are running 9 lbs of pressure, the fronts are at 35. I have homemade wheel weights but have not filled the tires, figuring a punctured liquid filled tire would be a lot more hassle than a punctured air filled one.

R1s are not as tough as R4s, but will work better in the gooey stuff. They are harder on any grass you drive over, particularly in turns. As jbrumberg said, you will need to change out all 4 if you have driven front wheels to keep the "lead" ratio the same or you will be buying expensive metal parts very soon. You will also probably need to invest in new rims since the sizes of the different style tires are usually different with respect to width, overall diameter, inner diameter, aspect ratio, and possibly bead design. Switching tire types is not an inexpensive move.
 
   / R1 Rears? #4  
If he buys a R-1 with the same circumference, why would he have to change the front tires? Granted, for maximum pulling power, changing the fronts to R-1's also would make sense, but whoever said everything we do makes sense? I don't think the width of the tire has any bearing on the stress load in the driveline, caused by the front end not outpulling the rearend.
My opinion is that he can change only the rears if he wants and go as wide as he wants as long as the rolling circumference is the same as it was originally.
What tire size are they on the tractor now, and what is the diameter of them?
David from jax
 
   / R1 Rears? #5  
That's a pretty big if regarding circumferences, but, yeah, presuming he kept the same ratio between front and rear circumferences, it would be okay. The thing is the different construction and sizes of the different types of tires make the odds of matching up R1s with R4s to get the right ratio pretty slim.

There is some degree of latitude to allow for the faster wear of front tires on a FWA tractor, but I would encourage anyone to check with the dealer or manufacturer before mixing sizes and types in any way other than the way it was set up originally.
 
   / R1 Rears? #7  
There are several websites that gives actual tire sizes, so no matter what the tread, they should work, provided you measure correctly.
David from jax
 

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