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 an accessible price point.
Expertly tailored for the unique demands of open-wheel and dirt track racing, the SD1 features a specialized "no front vent" design to ensure your vision remains clear and your interior stays free of grit and debris. The integrated front chin spoiler provides critical stability in open-cockpit environments, keeping the helmet planted during high-speed maneuvers. Every SD1 is hand-built to order in New Braunfels, Texas, continuing a tradition of American-made racing excellence.
Advanced Protection & Standards
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Snell SA2020 Certified: Engineered to the latest safety standards, the SD1 is broadly accepted by racing sanctioning bodies and tracks through 2030.
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Classic Gloss Black Finish: This model features a high-strength composite shell in a timeless Black finish, offering a sleek, professional look on the track.
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Hand-Built Precision: Meticulously assembled to ensure every helmet meets Simpson’s rigorous quality and safety benchmarks.
Aerodynamics & Racing Performance
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Dirt Track Optimization: The deliberate omission of front vents is a mechanical necessity for dirt racing to keep grit out. Airflow and cooling are efficiently managed through dedicated top and rear exhaust vents.
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Stability at Speed: The front chin spoiler is designed to combat lift in open-cockpit cars. For drivers seeking maximum aerodynamic balance, an optional rear spoiler is also available.
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Forced Air Compatibility: (Coming Soon) The SD1 will support optional top and top-left offset forced air ports for active cooling and advanced fog mitigation.
Fully Customizable Fit & Comfort
The SD1 interior is highly modular to provide a custom-tailored fit for every driver:
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Removable Cheekpads: Sizes range from 0.75" to 1.375" to allow for a precise lateral fit.
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Adjustable Top Pads: Sizes ranging from 0.25" to 0.625" allow the user to lift or lower the helmet for optimal 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: Black (Composite)
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Size: Double Extra Large / XXL (Available in 2 shell sizes spanning XS–XXL)
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Visor Hardware: Comes standard with an antifog and antiscratch visor. (Optional tints: Dark Smoke, Iridium, Amber, and Chrome).
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Tear-Off Ready: Equipped with 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 liners and resins may diminish. Always verify specific safety requirements with your sanctioning body before competition to ensure your gear meets current track standards.
