B6200 Tire Size Ratio

[boulderz]

Hello,
I have a tire sizing question. I picked up a B6200 which has the stock size tire on the front (20.5x8.00-10) however the rears that came on the tractor (which should be 29x12.00-15 according to TractorData.com) are 31x15.5x15.

I'm looking to replace the tires and found some new 31x15.5x15 for the rears (good deal on ebay) but am wondering if I should be looking for the 29x12s instead.

Are the tires on there now doing damage?

Thanks

 

[D2Cat]

You didn't state if your tractor is 4 wheel or 2 wheel drive. Makes a difference on 4x4, not on 2x4.

 

[boulderz]

You didn't state if your tractor is 4 wheel or 2 wheel drive. Makes a difference on 4x4, not on 2x4.

The tractor is 4x4.

 

[geoff]

If 6our 4x4 then get them right, they can wind up the transmition in 4wd, causing premature gearbox and tyre wear, or potentialy gearbox damage.
it's the actual circumference of the tyres and the ratio between back and front that matters.