— Southern Ontario Sprint (SOS) officials have announced that there will be three right rear tires allowed in 2023 competition — the American Racer MC-3, the Hoosier HTC and the Hoosier ‘Medium.’. The American Racer MC-3 has been the SOS spec tire since its inception in 1996. The Hoosier HTC has been the tire of choice for the Ohsweken Speedway, the former Knights of Thunder Series and the two New York-based Sprint Car series (ESS & PST). The Hoosier Medium tire is widely used throughout the U.S., including by the Great Lakes Super Sprint Series which competes in nearby Ohio and Michigan. Finally, while it is hoped that tire supply issues are a thing of the past, this will let competitors work around any supply issues should they arise.

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