Hello,
Hosts are free to make their own tyre rules; many hosts have already, however, iGP Manager doesn't currently have any official tyre rules.
Many leagues operate a 2/3 warning structure, where if you disobey the tyre rules 2 races in a row, you are removed from the league. As long as there is plenty if forewarning before the renoval, these are classed as legal member removals.
