Although 18-inch bead diameter racing tires have been around for years, Goodyear is the first tire company to develop such a tire for the high, sustained load duty cycle of a Cup Series vehicle in the environment of oval track racing.. Grooves are not the tread but are in the tread. This website uses cookies to improve your experience while you navigate through the website. "In theory, softer tires tend to wear more, and lap times will fall off more over the course of use." F1 must seek answers after boring Baku F1 race, says Wolff, Why Erebus lodged an unwinnable protest Thankfully, NASCAR has made no changes to the heart of these cars. These cookies track visitors across websites and collect information to provide customized ads. The engineers will record the tire temperatures and other parameters using telemetry at different times during racing. A set of tires costs about $500 on average, and each team spends more than $20,000 on a single race. The biggest challenge has been maintaining the necessary flexibility to change quickly as the new car evolved, he said. Tires have to be built specific to the tracks and have to last one refuel run. . NASCAR drivers and racing teams take great care of their tires when racing. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. The ex-F1 driver taking on NASCAR with a new team, The early benefits and challenges of NASCAR's Next Gen car, The early benefits and challenges of NASCAR's Next Gen car Experienced drivers make sure that their tires heat evenly till the end of the race. NASCAR True Tire History - RacelineCentral.com That will translate to a reduction in overall grip. ORIGINAL POST 7-13-2019: After decades of using 15-inch diameter tires, NASCAR and Goodyear definitely will increase tire size diameter - probably to 18-inches - beginning in 2021 when the new Generation 7 Cup Series racecar is put into use, Kickin' the Tires has confirmed. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Mark Keto, Goodyear's NASCAR project manager, said an enormous engineering effort went into the tire design including tire modeling, tire builds and lab testing. After the tires on a car are changed, the worn tires are closely examined and the findings are noted. Instead of the 15-inch tires currently used, the targeted size of the new tire is 18 inches and the change would coincide with the introduction of the Generation-7 vehicle. Hosier was approved as a tire supplier for NASCAR in 1987 and supplied tires for the 1987 Busch National Series. What are the dimensions of a NASCAR tire? NASCAR runs a very plain, old school steel wheel. you can check out a few below. When NASCAR was launched in 1948, Firestone was the only tire supplier for NASCAR. "We know where they are, and if at any time we want a particular tire back, we can do that. These cookies ensure basic functionalities and security features of the website, anonymously. On these tracks, drivers will often speed through both laps. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Archived post. Ryan Truex claims first career Xfinity win at Dover, How NASCAR is gearing up for its "biggest change" in 2022, How NASCAR is gearing up for its "biggest change" in 2022 NASCAR runs a very plain, old school steel wheel. That improves its annual tire sales year on year. NASCAR recently partnered with Liberty Tire Recycling, to solve the 120,000 annual tire problem.