[skidlids]

Originally Posted by DavidinHampshire

For a 620 Class A Monster, what's the control tyre and why don't people use it at other times?

So where has the Premiss come from that people trackday on one tyre and race on another.
I don't know of anybody racing in DD that does that and again as far as I know the majority if not all current DD bikes are only used for racing or testing/trackdays and NOT OTHER uses

I have bought DD bikes that haven't been used for a few seasons and they usually come with the old Pirelli Diablo control tyre.