Southern Oregon Speedway
2023 Late Model Tire Rules
WHEELS & TIRES
MAX 14” wide wheels Hoosier D 55 spec, Hoosier WRS-2, LM40 tires will all be permitted for the 2023 season. Tire rule may change in 2024. Siping, grooving and grinding ok. Absolutely no chemicals to be used on inside or outside of tires. If you need lubricant to your seat your tires on the bead, use soap and water. Random samples of tires will be sent off to a laboratory to be analyzed. If the sample is found to be chemically altered, you will be disqualified, fined and suspended. Fine amount and suspension length to be determined. Foam type or securely bolted plastic or aluminum outer mud cover. Must be securely fastened, loss of mud cover during race will result in disqualification.
Due to Hoosiers new tire compound, all existing tires (D55,WR-2 LM40) will be used until they run out, the new compounds of Hoosier tires will be the L-4 which is a 92 for the Right Rear and the L-3 which is a 90 for the other 3 corners
Submitted By: Ranae Acord