Stilo ST6 GT Carbon Fiber Helmet SA2025
Pre-order: Ships after October 1, 2025.

The legendary Stilo carbon helmet—lighter, cooler, clearer
For over 25 years Stilo has led racing-helmet innovation, and the ST6 line marks a bold new chapter. With input from top programs, engineers refined the front and top aerodynamics for high-speed stability. The carbon ST6 prioritizes airflow, visibility, and comfort while maintaining modern safety standards. From track-tested aero to a dual-lock visor system, every detail is designed to give racers a performance edge.
The ST6 improves on the market-leading ST5 in key areas:
- 10% lighter than Stilo ST5
- 26% more airflow than Stilo ST5
- 11% more visibility
- Refined liner and cheek pads
- More shell sizes for optimized weight
- Reworked visor construction for durability and easy care
- Updated visor hardware for reliability
Stilo ST6 GT Carbon Helmet Features
Puro Tech: Stilo’s carbon process minimizes extra coatings to reduce mass without compromising protection.
New shell size options: now offered in three shell sizes to deliver the smallest, lightest shell appropriate for your head size.
STILO ST6 GT CARBON FIBER HELMET CUSTOMIZATION PAD CHART

Increased airflow design: redesigned front intake and top vents route air through EPS channels to reduce sweat and moisture.
Increased downward visibility: a wider eyeport improves belt fastening and cockpit awareness.
Interior comfort: reshaped cheek pads stabilize fit and comfort at speed.
Injection-molded visor: clear optics with a washable high-performance anti-fog treatment.
Dual visor lock: compliant with FIA standards in both closed and vent positions.
Updated visor hardware: smoother actuation and easier installation; available in anodized finishes.
Stilo Helmets ST6 GT Carbon Fiber Helmet Details
- Manufacturer: Stilo Helmets
- Manufacturer part number: AA0800AF1X
- Homologation: FIA 8858-2015 (FHR posts)
- Certification: Snell SA2025
- Compatible shields: Stilo ST6 helmet shields
- Noise-attenuating earmuffs included
Other Versions of the Stilo ST6 Racing Helmet
- Stilo ST6 FN SA2025 Carbon Fiber Helmet
- Stilo ST6 FN 8859-ABP Helmet
- Stilo ST6 FN Zero 8860-2018 Carbon Fiber Helmet
- Stilo ST6 FN Zero 8860-2018 ABP Carbon Fiber Helmet
- Stilo ST6 GT Composite Helmet
- Stilo ST6 FN 8859-ABP Carbon Fiber Helmet
- Stilo ST6 GT 8860 Carbon Fiber Helmet
- Stilo ST6 FN 8860 Carbon Fiber Helmet
- Stilo ST6 FN 8860-ABP Carbon Fiber Helmet
- Stilo ST6 GT ZERO 8860-2018 Carbon Fiber Helmet
Measuring Your Head for Your New Stilo ST6 GT Carbon Fiber Helmet
The most effective helmet is one that fits properly. Have an assistant measure the circumference of your head about an inch above your 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: 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 GT Carbon SA2025 Helmet FAQs
Is this Snell SA2025 certified? Yes, this listing reflects SA2025 certification.
What’s the difference between GT and FN? GT includes earmuffs for noise reduction and comms; FN is open-ear for maximum awareness and airflow.
Can I use ST5 shields on the ST6? No. The ST6 uses its own shield family; choose ST6-specific shields and hardware.
How should I choose my size? Measure head circumference and consult the pad chart; if between sizes, many drivers prefer the tighter fit for stability.
This helmet will ship with signature required for delivery.