GT3 Regional Class, GT3U Majors/Runoffs Class for ‘25 (STU'26)
#37535 from Club Racing Board · Rule change · TB 25-01 (2025-01 Fastrack)
Per Race Memo 24-08 In GCR section 9.1.2, make changes as follows:
"GT3 (GT3) Regional Class"
"GT-3U (GT3U)"
In GCR section 9.1.2.f, make changes as follows:
"9.1.2.F GT-2, 3, 3U, Lite CATEGORY SPECIFICATIONS"
In GCR section 9.1.2.F.3, add as follows:
"9. All GT3U (Majors and Runoffs) cars shall run at current GT3 race weight plus 150lbs. All GT3U cars shall run one of the
following tire and wheel combinations: A Dot approved tire with maximum section width of 245. GT3U cars base wheel is a
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maximum of 15"x9". "18"x9" wheels are allowed with a 3% weight addition. GT3 U cars utilizing 15"x7" wheels are limited to a
section width of 225 with a 25 pound weight reduction."