Stilo Helmets ST6 GT Composite Offshore Helmet Details
- Manufacturer: Stilo Helmets
- Manufacturer part number:Â DA0802RF2X
- Homologation: FIA 8858-2015 (HANS posts)
- Certification: Snell SA2025
- Compatible shields: Stilo ST6 helmet shields
- Noise-attenuating earmuffs included (ideal for intercom clarity in loud cabins)
Stilo ST6 GT Composite Offshore Racing Helmet Sizing Note
Customers who typically wear a size 59 in other brands often prefer a Stilo size 61 (large shell). If you are between sizes or prefer a tighter fit, consider the smaller option.
Measuring Your Head For Your New Stilo ST6 Offshore Composite Helmet
The most effective helmet is one that fits properly. Have an assistant measure the circumference of your head about an inch above the eyebrows, around the largest point at the back, and back to the front. Take multiple measurements and use the largest.
What’s Changing in SA2025 Auto Racing Helmets?
SA2025 helmets are here, and while the changes may not be groundbreaking, they represent an important evolution in motorsport safety. According to the Snell Memorial Foundation, the SA2025 standard is an evolutionary update from SA2020—not a complete overhaul. Unlike the M2025 motorcycle standard, which adds rotational impact testing, the SA2025 auto racing helmet standard does not include rotational force requirements.
Key SA2025 Helmet Safety Enhancements:
- Increased Impact Protection: SA2025 helmets are required to handle slightly higher impact speeds and achieve lower maximum peak G-force thresholds across all head-form sizes.
- Global FIA Alignment:Â These updated requirements bring the SA2025 standard into alignment with the new FIA 8859-2024 helmet safety regulation, creating more consistency across international motorsports.
In short: SA2025 helmets are designed to offer enhanced linear impact protection, making them the safest Snell-rated auto racing helmets to date. Whether you’re a competitive racer or a weekend track day enthusiast, upgrading to an SA2025-certified helmet ensures compliance with future racing regulations and gives you peace of mind at speed.
Stilo ST6 Offshore Composite SA2025 Helmet FAQs:
Does the ST6 Offshore Composite meet Snell SA2025? Yes, this listing reflects the SA2025 certification for U.S. auto racing.
What makes the Offshore version different? It includes noise-attenuating earmuffs designed to reduce cabin noise and improve intercom clarity.
Can I use my ST5 shields on the ST6? No, the ST6 uses its own shield system; choose ST6-specific shields and hardware.
How should I pick my size? Measure head circumference and consult the size chart; if you’re between sizes, many drivers prefer the tighter option for stability at speed.
Is the visor anti-fog? Yes, the ST6 visor includes a washable, high-performance anti-fog treatment.
This helmet ships signature required.




