I agree that we should keep at least classes 1 to 4 as inclusive as possible and that means keeping them as road going. We should see this as an opportunity to attract more competitors as many will already have decent tyres from the new 1b list. Those who are already addicted would probably equip themselves with whatever tyres are demanded by the regulations. It is the new or casual entrant we need to think about. I don't see any need to change the tyre regs for classes 3 and 4, just go with the new 1b list. Classes 5 and 6 are always going to have small entries and there may be a case for non road going. We cannot predict what is going to happen in 2 years time, technology may move on so that we have E rated tyres better than the current F rated. Just a few thoughts from class 2 ......having used 3 different types of tyre over the last 5 seasons. Graham