Tire Changes in the Rules for GT4
#37497 from Joe Rainey · Rule change · TB 25-02 (2025-02 Fastrack)
In T1-GT4 Spec Lines, Audi R8 GT4 Spec Line #4020, change Max Tire Size as follows:
"315 DOT, 305/645, or 30/65-18 (f), 33/68-18 (r) Non-DOT"
BoP Lab / Rules / Letter #37497
#37497 Tire Changes in the Rules for GT4
From Joe Rainey · T1 · Rule change