Stilo ST6 FN Carbon ABP Racing Helmet - FIA8859
Stilo ST6 FN Carbon ABP Racing Helmet - FIA8859
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Engineered for elite-level motorsport, the Stilo ST6 FN Carbon ABP Helmet delivers uncompromising safety in a featherweight, no-comm configuration. Built from ultra-lightweight carbon fiber and certified to the latest FIA 8859-2024 and ABP (Advanced Ballistic Protection) standards, this helmet offers advanced impact and penetration resistance without excess bulk. The "FN" variant omits radio and hydration ports, making it ideal for closed-cockpit racing where a clean, streamlined design matters most. With a narrow eyeport for increased frontal protection, aerodynamic shaping, and M6 terminals for FHR systems, the ST6 FN Carbon ABP is purpose-built for focused, distraction-free performance.
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.