Tire rules for Tri-City, I-55, Highland,Belle-Clair Speedway & SFCR for the rest of the year:
A-Mods:
H- emod.
A- emod
AS- emod.
NO grooving on rear tires
Grooving on front tires allowed all year
B- Mods:
H- emod
A- emod
AS-emod
Grooving allowed on all 4 corners.
A-Mods:
H- emod.
A- emod
AS- emod.
NO grooving on rear tires
Grooving on front tires allowed all year
B- Mods:
H- emod
A- emod
AS-emod
Grooving allowed on all 4 corners.
Last edited: