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2023 Tire Rules for XR Super Series
Updated 3/20/23

Tire Rules may be adjusted at any time for any reason and will be properly communicated though text, email, and social media.

  • Hoosier NLMT2, NLMT3, NLMT4
  • American Racer 48 or Harder
  • All 4 Corners
  • No Limit
  • Can Mix and Match

Additional Info:

  • Grooving, Siping, Drilling of tires are allowed (Rule 13.10).
  • Only approved tires will be permitted for use in competition (Rule 13.11).
  • Chemical alterations, vulcanizing, tire softening, defacing, and/or altering the face of the tire lettering and/or tire stamping will not be permitted (Rule 13.12).
  • Tires may be inspected at any time (Rule 13.13)
  • Rules LINK

Tire Testing Data