Simpson Racing SD1 Helmet - M - CarbonMedium - Carbon - SA2020 Bandolero 027 in Compression Thickness -

027 in Compression Thickness - Multi-Layer Steel - Ford 2300 - Each

Fitting - Bulkhead - 1/8 in NPT Female O-Ring Seal - Aluminum - Black Anodized - Each

making it an ideal choice for enhancing both the aesthetics and functionality of your racecar

290 in Bore - Tapered - Billet Aluminum - Black Anodized - Each

Crush Sleeve Spacer - 0

Simpson Racing SD1 Helmet - M - CarbonMedium - Carbon - SA2020 Bandolero 027 in Compression Thickness -Simpson's, lightest and most aerodynamic helmet, the SD1 is a premium helmet at a reasonable price. The helmet is tailored towards open wheel dirt track racing with no front vents and a front chin spoiler.