Originally posted by NiMo
No control tyre full stop.
What was the Foam class has gone to EFRA technical rules, so you can run either foam, rubber, or even both.
I have thought about qualifying on Foam but running the longer finals on Rubber, then I wont have to worry about tyre wear.
Oh, I didn't know that there was no control at all ... i.e. open tyres.
Your point about wear and running mains on rubber is interesting!