Keeping the speed down so they can use rain tires if needed
NASCAR Cup: rain tires available for 2018 Charlotte Motor Speedway roval race
“There was some debate about whether or not we should run rain tires on the roval because of how much you run on the bankings and the speed you may or may not have,’’ Goodyear General Manager of Worldwide Racing Stu Grant said. “There was some due diligence on whether or not rain tires should be run. A lot of modeling, a lot of simulation and it looks like the speeds are going to be comparable to Watkins Glen and NASCAR has made the call, yeah, Goodyear go ahead and have rain tires available for this race a year from now.’’
“The banking that you run here adds a whole different element from a car setup standpoint,’’ Grant said. “It’s different than trying to set up the car for a road course at Sonoma for example. We’re going to learn a lot about the tires and the compound necessary to come here with a good race tire, but the teams are going to learn a lot about how to set the car up properly.’’
http://autoracingdaily.com/nascar-c...for-2018-charlotte-motor-speedway-roval-race/