Description
The Simpson SD1 is the premier choice for racers seeking a high-performance, lightweight advantage. Recognized as Simpson’s lightest and most aerodynamic helmet, the SD1 offers professional-grade features and elite safety at a reasonable price point.
Tailored specifically for the rigors of open-wheel and dirt track racing, the SD1 features a specialized "no front vent" design to keep your interior clear of dirt and debris. The integrated front chin spoiler provides essential stability in open-cockpit environments, ensuring the helmet remains planted at high speeds. Every SD1 is hand-built to order in New Braunfels, Texas, maintaining a legacy of American racing excellence.
Elite Safety & High Visibility
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Snell SA2020 Certified: Built to the latest safety benchmarks, the SD1 is broadly accepted by race organizing bodies and tracks through 2030.
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Vibrant Yellow Finish: One of Simpson's newest color offerings, this high-visibility composite shell ensures you stand out on the track.
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Hand-Built Quality: Meticulously assembled to meet rigorous quality control standards for maximum driver confidence.
Aerodynamics & Specialized Performance
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Dirt Track Defense: The deliberate omission of front vents is a mechanical necessity for dirt racing to block grit. Cooling is handled via dedicated top and rear exhaust vents.
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Stability Enhancements: The integrated front chin spoiler reduces lift in open-cockpit cars. For drivers seeking maximum aerodynamic balance, an optional rear spoiler is also available.
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Forced Air Ready: (Coming Soon) The SD1 will support optional top and top-left offset forced air ports for active cooling and superior fog mitigation.
Precision Fit & Driver Comfort
The SD1 interior is fully modular to provide a custom-tailored fit:
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Removable Cheekpads: Available in sizes from 0.75" to 1.375" for precise lateral support.
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Adjustable Top Pads: Sizes ranging from 0.25" to 0.625" allow the driver to lift or lower the helmet for perfect eye-port alignment.
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Gel Earcups: Includes removable gel earcups for enhanced comfort and significant sound attenuation.
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Communication Ready: Fully compatible with all Simpson communication kits.
Specifications & Features
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Color: Yellow (Composite)
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Size: Extra Large / XL (Available in 2 shell sizes spanning XS–XXL)
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Visor System: Comes standard with an antifog and antiscratch clear visor. (Optional tints: Dark Smoke, Iridium, Amber, and Chrome).
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Tear-Off Hardware: Includes premium aluminum tear-off posts compatible with standard 10209C, 10209CP, and 10209S tear-offs.
Safety Compliance Note
The Snell Foundation recommends helmet replacement every five (5) years from the date of manufacture. Over time, the protective performance of safety liners and resins may diminish. Always verify specific safety rules with your sanctioning body before competition to ensure your equipment meets current track standards.
