Dave R.

Those are called "bead locks" and the 4X4 crowd [and military] have been using them as well as drag racers forever and a day. Used to have a set on American Racing wheels [or Weld Racing] and 33.5" X 12" BFG Mud Terrains on my '84 CJ-7. Especially helpful if you deflate tires to run on the sand / dunes and want the rubber to stay on. Will also see them on highly modified rock crawlers.

Jase

Oh, that unmistakable sound: Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump Wump.

Talking about unsprung weight!

I had a 78 CJ5 but only had the 31 x 10.5.
I few summers I'll never forget.

Got new tires on the Vanagon yesterday at Radial Tire. They special ordered what I needed and had them in one day. With the discount they give to PCA members I saved enough to cover my years membership. As always they were slammed busy but did a great job and really know what they are doing. :-)

Tire Slip
 

Yes, I'm aware of the rim-lock and screw techniques from my motocross days. Somehow, the probability of drilling my like-new 18" Fikse Profil 13's might appear to be remote...

We were able to run some near side-by-side tests in Canada. Paul dry mounted a set of new Hoosiers for Tom Trew before we left and one rear spun 180 degrees in one session; his previous set with cured hairspray didn't move much at all. Paul also dry mounted a set of mine before the trip; they moved about 30 degrees. Then I had the tire guys at Mosport remove the rears to flip them (at the track, and FREE) and they let me clean the surfaces with lacquer thinner then treat them with hairspray that cured about 20 minutes. Neither tire moved more than an inch the following day. Note that the process of cleaning the rims properly took a little longer when removing the hairspray. Not perfect, but the best we've found to date.

Old thread but decided to resurrect it.

Paul took great care of me yesterday at Radial Tire.

Waiting room was full but I got out of there in less than an hour. I've been a loyal Tire Rack customer for years but prices were better at Radial Tire. And the service can't be beat. Had a nice chat with the installer too and he ensured that the tires won't slip on the wheels at the track.

It occurs to me that Paul is kind of like a drug dealer (in rubber) to all the track addicts out there. So, you need a little more speed? Ok, I have just the thing to fix you up... ;)

When he couldnt find me R-888 last fall he put together a set of wheels with Hoosiers on them as a loaner for a weekend event. You dont get that kind of service everywhere

You guys are doing it wrong. Load the tires in the back of spouse's car, send down to Paul to drop off, pick up next day. When you have them flip your tires, please don't forget a very generous tip in their tip box.

When I go myself (mostly what I've done this year), Paul gets concerned and asks if my wife is okay...

Curious as to what he did to ensure no slippage...

He cleaned the rim-tire mating surface really well and dry mounted them.

Now that I have read the whole thread above there seems to be a difference of opinion as to what works to keep the tire from slipping on the wheel. I plan on marking the wheels and tires to see if they slip on me but with my lack of talent its lucky the wheels move at all relative to the car.

It also seems that dry mounting may cause more air to leak--at least that is what someone posted above. I am really anal about tire pressures so a little air leakage shouldn't be a problem for me. That being said, does anyone know how much more air might leak with a dry mount?

I have yet to see a hard-driven set that didn't slip. And I've seen more than a few where the owner beamed about how he was finally able to eliminate the slippage, and when he went to show it off found the tick marks were no longer aligned. (EDIT: I am referring to hard-driven on track by someone with enough days under their belt to drive 'em hard, not "I tear it up on the street")