Photos shown for illustration; shade and shape may differ slightly.
Stilo ST6 GTN Composite Full Face Helmet, White/Black, FIA 8859-2024, Snell SA2025, FIA 8858-2010 HANS Posts
The Stilo ST6 GTN Composite is a full face circuit racing helmet, approved to FIA 8859-2024 and Snell SA2025. Stilo recommends it for closed-wheel racing; no electronics are fitted, and the padding has channels for the electronics wiring and for air and water systems.
Specifications
| Approval | FIA 8859-2024, Snell SA2025 |
| Type | Full face |
| Shell | MSP multi sandwich pre-preg fibre composite |
| Sizes (head circumference, cm) | small shell: XS 54, S 55, M 57, L 58; medium shell: L 59, XL 61; large shell: 2XL 63, 3XL 64 |
| Weight per shell (+/- 30 g) | 1300 g small shell, 1420 g medium shell, 1530 g large shell |
| Communication | No electronics fitted; a communication kit is fitted on request |
| Ear padding | Adjustable |
| Field of view | Larger downward view than the ST5 |
| Drinking system | Prepared for front and side fitting |
| Padding | Channels for electronics and for air and water systems |
| HANS posts | Fitted, FIA 8858-2010 anchors |
| Colour | White/black |
| Part number | AA0812AG2XC |
Who it suits
- Closed-wheel racing, when the communication kit is chosen separately
- The same helmet, another version: Stilo ST6 GTN Composite, FIA 8859-2024, part number AA0812AG2X
- Same approval, different shell: Stilo ST6 GTN Carbon, FIA 8859-2024, part number AA0812AG1X
- For karting: approved karting helmets
Approval and regulations
- FIA 8859-2024 is accepted by the 2026 Appendix L (Chapter III, Art. 1.1) for helmets worn with an FHR such as HANS, in circuit racing, hill climbs and rally special stages. Approved models are in FIA Technical List no. 107
- FIA Technical List no. 25 gives no expiry date for the FIA 8859-2015, 8859-2024 and 8860-2018 standards
- The validity that counts is the one on the helmet's FIA homologation label, as the note in the FIA helmet technical lists says
- Snell SA2025 is the certification of the US-based Snell Memorial Foundation. It is not in FIA Technical List no. 25, so in FIA events the helmet's FIA label is what counts
- The HANS posts are FIA 8858-2010 helmet anchors. Appendix L (Art. 3.2 and 3.3) requires the FHR to be worn only with FIA 8858 approved anchors and tethers