Stilo ST6 GT Carbon Racing Helmet - FIA8860
Stilo ST6 GT Carbon Racing Helmet - FIA8860
Couldn't load pickup availability
The Stilo ST6 GT Carbon Helmet delivers elite protection and advanced functionality for closed-cockpit racers, meeting the stringent FIA 8860-2018 standard. Constructed from a premium carbon fiber shell, it balances extreme strength with impressive weight savings. Designed with integrated side ports, the ST6 GT supports seamless radio communication and hydration setups, making it ideal for endurance, GT, and prototype drivers. Its narrow eyeport enhances frontal impact resistance and glare control, while the aerodynamic profile ensures stability at speed. With HANS-ready M6 terminals and a customizable fire-retardant liner, the ST6 GT Carbon is purpose-built for high-performance motorsport.
Size Guide
| Head size (cm) | Head size (in) | Stilo size | US hat size |
|---|---|---|---|
| 54 | 21 1/4 | 54 | 6 3/4 |
| 55 | 21 5/8 | 55 | 6 7/8 |
| 56 | 22 | 56 | 7 |
| 57 | 22 1/2 | 57 | 7 1/8 |
| 58 | 22 7/8 | 58 | 7 1/4 |
| 59 | 23 1/4 | 59 | 7 3/8 |
| 60 | 23 5/8 | 60 | 7 1/2 |
| 61 | 24 | 61 | 7 5/8 |
| 63 | 24 3/4 | 63 | 7 7/8 |
| 64 | 25 1/4 | 64 | 8 |
Stilo sizes are head circumference in centimetres — a size 57 helmet is built for a 57 cm head. Measure around the widest part of your head, about 1 cm above the eyebrows and above the ears.
Stilo run a little smaller than most other brands. If you fall between sizes, or measure a number Stilo does not make (53 and 62 are not produced), take the next size up and tighten the fit with cheek pads (20–35 mm) or crown and earmuff fitment pads.
Not every model offers every size: the ST5 range skips 56 and 58, the ST6 range skips 60, and the Venti Sport helmets are offered in 54, 55, 57, 59 and 61 only. Check the size selector on the product.
Shell sizes: ST5 and ST6 use a small shell for 54–59 and a large shell for 60–64.
Where dealers quote letter equivalents: 55 = S, 57 = M, 58 = M/L, 59 = L, 60 = L/XL, 61 = XL, 63 = XXL, 64 = XXXL. Stilo itself sizes only by number.
Sizing is from the manufacturer and varies between brands. Measure yourself and compare against the table rather than ordering your usual street size.