275 Tire Rule
#38983 from Peter Federlin · Rule change · TB 25-12 (2025-12 Fastrack)
In GCR, Section 9.1.4.G.1., change as follows:
"A maximum section width of 245 is permitted. Cars over 3150 lbs. may run a 275 tire with a 2% weight adder."
BoP Lab / Rules / Letter #38983
#38983 275 Tire Rule
From Peter Federlin · STU · Rule change