Dual wheel adapters
 

What type of dual wheel adapters are best to use on 23-10.50-12 inch ag tires and where are the best place to find them:bigthink:

Xtrememotorworks has them. If u want to make some get 12inch all thread that how i made mine i have no spacer but is ok not to use them all the pressure is on the inside tire. You need 5/8 all thread and nuts dirt cheap too!:biggrin2:

So you did not leave any space between the wheels, just tire to tire, is that you are saying:bigthink:

Miller tire has a ring spacer that goes between the rims and uses all thread and nuts i think. been a while since ive looked. Or you could go a route like Willam did and make your own. His is adjustable like the big IH tractor axles and is bolted to the hub. Cant find the thread at the moment but a pretty awesome set up!

The all-thread will eventually wreck the square wheel weight holes in the rims. If 'all the pressure is on the inside tire' then there is no advantage to the duals. If the second tire is touching the ground, it's doing something, and without a proper spacer to carry the torque, you run the risk of messing up your wheels with the all-thread.

Donny-

Here's what you need.

I get the idea that attaching a second set of wheels w/just bolts/threaded rod could cause rim issues. Using some type of spacer to keep the rims inline and tight would help prevent said rim issues. I also see how without solid connection to the HUB the pressure is all on the inner rim. BUT what I can't figure is what is the difference of hanging another tire on the inner rim or hanging multiple wheel weights WAYYY out there, your still loading that inner rim? Am I missing something here?

CHWNY-

Using a spacer between the rims and threaded rod through the wheel weight holes will not prevent relative motion between the wheels, bending the all-thread, and egging out the square holes in the wheel center. Those holes are meant for wheel weight mounting by way of carriage bolts, not for putting torque to the ground through an additional set of wheels.

Years ago when Aaron from Xtrememotorworks originally introduced those dual wheel adapters with the square tubing, I think he said the square tubing was used because the weld bead on a similar-sized round tube was insufficient; that should give you an idea of the potential loads encountered here.

What you are missing is that attaching wheel weights and letting them ride around is not the same as bolting another wheel on. With a wheel weight, the bolts just have to hold the weight in place, and the bolts are loaded primarily in tension; with a wheel connected to them, there is tension in the bolts and a far more significant bearing force on the holes in the wheel center, compounded by the fact that the threads are bearing on a square hole, so there is minimal contact area to spread out the load, so it'll quickly mess up the holes. I have even heard of people wrecking the holes in the rims from using all-thread instead of carriage bolts just to hold on wheel weights. Not to mention there isn't a very rigid connection between the wheels, so the outer one will slip, tilt the bolts, etc. My point is there are far better ways to attach the second wheel.

That's what i did and it did not mess up the rims.I know what Matt is saying they can bend i'm doing to a spacer in the next time i put them on because they weren't inline with the inner rim. If you have 23x10.50/12 the wheel base is 56 inchs!

Matt I agree with the use of carriage bolts, that all thread will not stay tight. I guess I wasn't thinking of the torque of the tire to the ground. I know the best way to add dual wheels is to mount to the hub via the studs. Thanks for clarifying

I run a dual wheel set up like the one Miller Tire sells for the last 5 years. I use carriage bolts to hold the wheels on. I aslo use a off topic 50 pound weight between the wheels. The square holes are not egg shape. The only way I would mount the duals is with carriage bolts.

We had 2 farm tractors with duals on them. One had the hub mounted dual system anf the other a clamp on style similar to the Miller Tire system. We never had a problem with either systems.

8.50 wide ag tires is all the wider tire I want to make a set of duals out of. What is the need to run 10.50 duals?