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.
- New, aerodynamic design
- Simpson's Lightest helmet
- SA2020 Certified
- Removable cheek pads - sizes range from .75" to 1.375" to allow for a custom fit
- Removable Top pads - sizes range from .25" to .625" to allow user to lift and lower the helmet
- Includes removable gel earcups
- Compatible with all Simpson communication kits
- Front chin spoiler for stability in open cockpit cars
- No front ventilation to keep dirt and debris out
- Top and rear vents for ventilation
- Comes standard with antifog, anti-scratch visor.
- Comes standard with premium, aluminum tear off posts compatible with 10209C, 10209CP, and 10209S
- Helmets are hand built to order in New Braunfels, TX
