Originally Posted by Ulrich
Scott54, you said the Trinity ultra firm is like solid rubber, are they so firm?Ulrich
I do not think the Trinity Ultra Firms are like solid rubber. They are not even as firm as a foam tire. But they probably are firmer than most people use on an off-road track.
I use them exclusively for rubber tires that I run on a dirt oval (foams don't work on this track). And actually, I feel that I could even use something firmer. The rubber tires still start to expand at the end of out 100 ft straightaways running 8 singles in a Sprint Car.