2025 Northern Allstars Late Model Dirt Series Rulebook
Tire Rule

Brownstown (IN) Speedway (March 8)
Florence (KY) Speedway (March 15)
Fronts/Left Rear – Hoosier (90) NLMT2, (90) NLMT3
Right Rear – Hoosier (92) NLMT3, (92) NLMT4

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2025 Northern Allstars Modified Dirt Series Rulebook
Tire Rule
Brownstown (IN) Speedway (March 8)
Florence (KY) Speedway (March 15)
Brownstown (IN) Speedway (March 29)
* The only tires approved for competition are the Hoosier: M-30S and M-60 compounds in the plated tire 26.5/8.0/15 or 27.5/8.0/15. The maximum width of the tire will be 9″ inches.
* The M-60 may be used as a right rear option tire only.
* Grooving and Siping of tires is permitted on M-30 and M-60 for the above March events.