rer07 not sure where you race but im trying to promote a jr wing class at dubois as well as a senior wing . not sure whats going on at flatrun with their wing karts, i see they came up with a new set of engine rules but if you know of anyone that has cage karts pass it on . will still be jr cage rules but with a wing for now. if we can get lots of karts then we could adjust rules a bit to satisfy the majority.
They're very similar to a Burris 22. Very floppy sidewall (kinda the opposite approach to running Vegas there. Natural gum rubber compound with lots of bite in them from the factory. Hoosier no longer offers the D10A. Because of the sidewall construction, you'll run slightly more air in the Hoosiers than Vegas (again, similar to when you'd be on 11s at Flat Run.) I still think a properly worked set of Vegas will be faster, but the Hoosier D20A has its time and place.
Give us a call a bit later today and we'd be glad to discuss.