Description
The Simpson SD1 is the ultimate choice for racers who refuse to compromise between weight and aerodynamic efficiency. As Simpson’s lightest helmet to date, the SD1 offers a professional-grade experience at an accessible price.
Expertly tailored for open-wheel and dirt track racing, the SD1 features a specialized design that omits front vents to keep your vision clear and your interior free of dirt and debris. The integrated front chin spoiler provides essential stability in open-cockpit environments, ensuring the helmet stays planted even at high speeds. Every SD1 is hand-built to order in New Braunfels, TX, maintaining the rigorous quality standards Simpson is known for.
Elite Protection & Standards
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Snell SA2020 Certified: Built to the latest safety benchmarks, the SD1 is accepted by major race organizing bodies and tracks through 2030.
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Durable Composite Shell: This model features a high-impact composite construction finished in a stealthy Matte Black.
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Freshness & Safety: Following Snell Foundation guidelines, it is recommended to replace helmets every five (5) years to ensure maximum protective performance.
Aerodynamics & Specialized Performance
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Dirt Track Defense: The "no front vent" design is a mechanical necessity for dirt track racers, preventing grit from entering the helmet while top and rear vents handle heat exhaustion.
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Stability Enhancements: In addition to the standard chin spoiler, an optional rear spoiler can be added for increased aerodynamic downforce.
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Forced Air Compatibility: (Coming Soon) The SD1 will offer optional top and top-left offset forced air ports for drivers requiring active cooling and advanced fog mitigation.
Precision Fit & Comfort
The SD1 interior is fully modular to accommodate a wide variety of head shapes:
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Custom Cheekpads: Removable pads ranging from 0.75" to 1.375" for a secure lateral fit.
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Adjustable Top Pads: Sizes from 0.25" to 0.625" allow drivers to adjust the vertical seating of the helmet.
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Gel Earcups: Includes removable gel earcups for superior comfort and sound attenuation.
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Comms Ready: Designed to be fully compatible with all Simpson communication kits.
Specifications & Features
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Color: Matte Black
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Size: Small (Fits within 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
Always verify specific safety rules with your sanctioning body before competing. After the five-year recommended use period, a helmet's protective capabilities may diminish, and it may no longer be accepted during technical inspections at sanctioned events.
