Description
The Simpson SD1 represents the pinnacle of Simpson’s helmet engineering, designed specifically for racers who demand the ultimate balance of weight, aerodynamics, and safety. Recognized as Simpson’s lightest helmet, the SD1 provides a premium racing experience at a reasonable price point.
Tailored specifically for open-wheel and dirt track racing, the SD1 features a specialized design with no front vents to prevent dirt and debris from entering the helmet, while a front chin spoiler provides critical stability in open-cockpit environments. Hand-built to order in New Braunfels, Texas, every SD1 is a testament to American craftsmanship and racing heritage.
Advanced Protection & Certification
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Snell SA2020 Certified: This helmet meets the latest safety standards and is broadly accepted by race organizing bodies and tracks through 2030.
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Modern Gray Finish: This model features a high-strength composite shell in a sleek, professional Gray, one of Simpson's newest colors designed for a high-performance look on the track.
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Hand-Built Quality: Every helmet is meticulously assembled to ensure the highest levels of quality control and driver safety.
Aerodynamics & Specialized Design
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Dirt Track Optimized: The deliberate absence of front ventilation is a mechanical necessity for dirt racing, keeping the interior clean while top and rear vents provide essential airflow to keep the driver cool.
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Stability at Speed: The integrated front chin spoiler reduces lift in open cockpits. For drivers seeking even more downforce, an optional rear spoiler is available for added stability.
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Forced Air Ready: (Coming Soon) The SD1 will support optional top and top-left offset forced air configurations for superior cooling and fog mitigation.
Customizable Fit & Comfort
The SD1 is engineered to be as comfortable as it is safe, featuring a highly modular interior:
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Adjustable Cheekpads: Sizes range from 0.75" to 1.375", allowing you to dial in a custom-tailored lateral fit.
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Adjustable Top Pads: Sizes from 0.25" to 0.625" allow the user to lift or lower the helmet's position for perfect eye-port alignment.
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Gel Earcups: Includes removable gel earcups for improved comfort and noise reduction.
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Comms Compatible: Fully compatible with all Simpson communication kits for seamless team interaction.
Specifications & Features
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Color: Gray (Composite)
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Size: Double Extra Large / XXL (Available in 2 shell sizes across the XS–XXL range)
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Visor: Standard antifog and antiscratch visor included. (Additional visors available in Clear, Dark Smoke, Iridium, Amber, and Chrome).
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Tear-Off Ready: Comes standard with premium aluminum tear-off posts compatible with standard 10209C, 10209CP, and 10209S tear-offs.
Safety Note
The Snell Foundation recommends replacing racing helmets every five (5) years from the date of manufacture. Over time, protective performance may diminish due to material aging. Always verify specific safety rules with your sanctioning body. After this five-year period, the helmet may no longer meet safety requirements or be accepted for use in sanctioned competitions.
