If you start on Normal Tyres you are stuck with Normal Tyres. When pitting you will be given the option to switch to Sports Tyres but it does not work - you will leave the pits with the same tyres you went in on.MRsliderIf you start an endurance race with Standard Tyres, you can switch to sports in a pit stop, or even mix them if you wish. This usually helps max out A-Spec points...
Moloch_horridusIf you start on Normal Tyres you are stuck with Normal Tyres. When pitting you will be given the option to switch to Sports Tyres but it does not work - you will leave the pits with the same tyres you went in on.
The only thing you can do, if trying to get more a-spec points is start on N1s (Economy) and then switch to N3s (Road) on the first stop.