Let’s talk TIRES

[AlexR 2,832]

1 hour ago, HyperPete said:

Now that is interesting to me, I was not aware that I should drop the tire pressure with beet juice!

This likely contributed to my lack of traction in the snow.

I have the same tires, I'll reduce them to 5 psi.

It's not just having them fluid filled even non filled you will get more traction with lower psi, on low speed tractors like Wheelhorse's there are probably only about 2 reasons to run higher psi on rear tires

1- Mowing shouldn't need lots of traction (unless very hilly) and less chance of tearing up grass with higher psi

2- Heavy loads, don't want the tires really bulging. 

 

Make sure your valve stem is at the top before letting air out when fluid filled. You probably already know that, but just in case you didn't. 

[AlexR 2,832]

13 hours ago, ebinmaine said:

Mine are not mounted yet, no.  

 

I wish I had measured mine before mounting, I don't remember what they measured and didn't take a photo of a measurement either.

[HyperPete 913]

On 3/8/2026 at 12:36 PM, ebinmaine said:

 

Having lower air pressure isn't a requirement for fluid filling specifically. 

It helps with keeping more of the tread on the ground surface by making the flat part at the bottom longer and wider.  

 

Are you using chains?

 

 

not yet, on my list!

[ebinmaine 78,256]

1 minute ago, HyperPete said:

not yet, on my list!

 

 

Speaking from experience. That's your traction problem.

[kpinnc 17,859]

An unusual size and tread on these: OTR Grassmaster in 22x12-12 size. Typically used on commercial ZTRs. 

 

Actual measurements are 22 inches tall, 11.5 wide. Probably would make true 12 inch width on 10 inch wide wheels. 

 

[ebinmaine 78,256]

53 minutes ago, kpinnc said:

OTR Grassmaster in 22x12-12 size.

 

Actual measurements are 22 inches

 

That's good to see. My OTR Lawn Trac are also nearly a full size of the listing.

[kpinnc 17,859]

3 hours ago, ebinmaine said:

That's good to see. My OTR Lawn Trac are also nearly a full size of the listing.

 

The last four tires I've bought were OTR. They are a bit expensive compared to the no name stuff on the jungle site (I've had good luck with those so far as well), but they seem to be very good quality. Time will tell on the longevity of course...

 

But all four of those tires are accurate on sizing. They do measure what is written on the sidewalls.