 change once you can do three or four stops and change between all three if you wanted to basically you've got to get to the finish line quicker than your rivals and sometimes a few stops to the pit lane and a few quicker stints on those quicker tires will be the way to do that it's a bit of a chess game going on out in front to change those tires you have to pit stop and nobody does a pit stop like f1 we're looking at 1.9 seconds two seconds i mean that's like i think the world record red bull currently holds another thing new fans need to know three letters d