Mazworx Mild Steel U-Weld Roll Bar Kits are made from 1-3/4" x 0.120" DOM Mild Steel Tubing. This is standard material and will meet SCCA and NHRA regulations. Each roll bar is made for each specific chassis. Please check your sanctioning body for exact requirements.
Basic roll bar is a 4 point which includes:
Hoop with Harness Bar and Diagonal (if purchased) welded together
Rear Strut Tower Bar (if applicable to chassis)
6 Point Option includes both side door bars and base plates.