ok so I am mounting some 31 x 10.5 x 15 on my kick. I have heard of ppl using air soft pellets or something like that and putting it inside the tire to act as a balancer. What are the opinions on this? I do alot of highway travel.
97 kick 4 door.

never heard of that i run 30 with no problems with wheel bal

Airsoft pellets are too light, there are some additives with steel
shot, but I think you should just have the tires ballanced and save
your money

I agree with Wild, I tried " balance beads" an expensive alternitive to wheel weights. I didn't want large amounts of weights on on my aluminum rims ( vanity ) so I had over a pound of that crap in each tire. Sorta worked, but only if you maintain a constant speed for a long time. Go with the traditional balancing.

I still have on the 30's on the Samurai with a lead weight balence. They have no highway issues and there is a minimal amount of weight on each of the steel wheels.

On my daughters Vitara I put 235's on an aluminium wheel with a lead weight balence. Again just a minimal amount os weights and no highway issues.

I guess if you really hate the look of a few weights you could utilize stick on lead weights on the back side only.

Or,

Have each wheel fluid balenced. The latter does a good job at highway speeds but is bumpy from the start especially if you live in a colder climate.

And ummmmn it is a lil pricey as well.

                                                                            Tux...   

The media balanced approach works, it's been used in trailers and big rigs for years.  You can use airsoft pellets, bbs, or something more professional like dyna beads.  That doesn't matter as much, as how much you use.  A 31X10.5 tires requires aprox 6oz or media per tire. That may be a whole lot of airsoft pellets.  Check out this site they have some good info, mainly the tire chart.

http://www.innovativebalancing.com/

My deciding factors:

Use if:

• Large bias ply tires, these tend to be harder to balance in a traditional manner, so media is a good option.
• Good if you drive your rig to and from wheeling.  It's hard to keep your tires balanced when you rip the lead weights off on the trail. Doesn't matter if you tires get clogged with mud or a chunk gets taken off. The media will still balance the tire.
• You need/want to change your own tires.  It's a good alternative if you don't have a good/cheap tire shop to balance your tires

Don't use if:

• Daily driver, it takes a second for the media to balance the tires, at normal speeds it's perfect but if you hit a hard bump at slower speeds it balance goes out of whack and takes a second to rebalance
• Tires smaller than 31"
• Standard radial, usually not a problem to balance with weights

These are just my opinions, but I hope that helps.

I did use the " Dyna Beads " a 32x11.50 tire required over 16 oz of the stuff to get it even close to being smooth. My brother in law later spin balanced them ( beads removed) and they rode much smoother. Way cheaper too. they may work on big rig wheels whose quite large diameter allows them to rotate much slower, but IMO not worth the $ in a smaller tire.