Safer Roll Cages
#32834 from Harley Kaplan · Rule change · TB 22-09 (2022-09 Fastrack)
In GCR, Section 9.4.D.1., Roll Cage Attachment Points, add the following:
"Cars competing in Improved Touring, Spec Miata, T4, and B-Spec may extend one tube per side from the door bars down to the
rocker panel. The attachment point may be not larger than 25 square inches and no longer than 8" in any direction. The tube
shall not exceed door bar diameter and thickness. The attachment points shall be approximately centered longitudinally in the
door openings."
In GCR, Section 9.4.E.1., Roll Cage Attachment Points, add the following:
"a. Cars competing in Improved Touring, Spec Miata, T4, and B-Spec may extend one tube per side from the door bars down to
the rocker panel. The attachment point may be not larger than 25 square inches and no longer than 8" in any direction. The tube
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shall not exceed door bar diameter and thickness. The attachment points shall be approximately centered longitudinally in the
door openings."