AMRA sanction back at Atomic for 2018 with with track set tire rules for Open Wheel Modifieds
Modified tire rule at Atomic in 2018:
Hoosier tires only
M30 & M60 on rear effective March 16, 2018 other Hoosier tires can be ran on fronts for burn off thru May 1, 2018. After May 1, 2018 M30 or M60 only on all 4 corners.
M30 can be ran on RR
NO siping or grooving M30's
Late Model and Sport Mod Classes will remain the same as 2017.