I have the new style MT ET street r 16.5x31 for my street tires,Coated with dishsoap on a 12 rim with no tubes.They still will leak a few lbs intermittently.I don't normally race with then as I have a pair of MT 10.5w's slicks on another set of rims for the track.
I made 4 passes at South Mountain on the Carlisle weekend and they hooked up well lifting the front tires.In the 90* heat and 85% humidity it still went 6.13 @ 113.I had my slicks with me for Sunday but it rained.I was curious what the difference would have been between the 2