SD1 Racing Helmet - SA2020 Size:Large A race version only version

A race version only version with the thermostat bypass blocked is also available

This baffle fits MOST B-Series oil pans

It is compatible with pump gasoline

No tune is required

SD1 Racing Helmet - SA2020 Size:Large A race version only versionSimpson'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. Features: New, aerodynamic design Simpson's Lightest helmet SA2020 Certified Available in composite and autoclave cured carbon fiber Composite models are available in 9 different colors including 3 new colors: Gray, Yellow, and Copper Removable cheek