– To discourage the need for the chemical altering of tires and to keep the competition as equal as possible, seven Indiana sprint car tracks have mutually agreed to modify their respective track tire rules. After careful consideration, the promoters agreed to allow an additional right-rear tire to be used by their 410 non-winged sprint car competitors. The tire choices will be the Hoosier 105/16.0-15 medium or the recently approved Hoosier H15 softer compound tire. The Midwest Sprint Car Series will also adopt the same rule for 2021. “We feel this is an opportunity for teams to choose a tire that is more suitable for the various track conditions they encounter throughout the season,” said Tom Helfrich, promoter of Tri-State Speedway and president of the Midwest Sprint Car Series.

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