5/11/2017
Park Jefferson International Speedway
Clarification on Park Jefferson Championship Sprint Tire Rules
Effective immediately, Park Jefferson will be following the tire rules implemented by the MSTS series. All other rules are ASCS rules, however the tire rules have been amended as follows:
MSTS Tire Rules, Right Rear must be Hoosier ASCS 105x16.0-15 Medium or Hoosier ASCS 105x18.0-15 Hard. (Same as ASCS)
Left rear tire must be Hoosier RC1/D12/H12/H15. (Same as MSTS but different than ASCS)
All front tires must be Hoosier.
No tire softeners allowed. Tires must durometer within factory specifications.
http://www.parkjeff.com/downloads/get.aspx?i=376002
For any questions contact the track office at 712-202-5540.
Submitted By: Adam Adamson
