Stilo ST5 GT Zero FIA8860-2018 Helmet
The Stilo ST5 GT Zero FIA8860-2018 Helmet is a top choice for professional racers looking for optimal safety. The 'Zero' version is incredibly strong and lightweight and features high tensile autoclaved carbon fiber construction. It exceeds the latest FIA-8860 safety standard with exceptional impact and puncture resistance. Its advanced design incorporates built-in ports for electronics, forced air, hydration, and a helmet eject system. The ST5 GT model features a taller and lower eyeport, offering improved visibility without sacrificing safety.
| Rating: | FIA 8860-2018 |
| Hans Anchors: | Stilo HANS Post Anchors |
| Weight: | 2.5-2.7 Lbs |
| Shield Style: | ST5 |
| Part Number: | ST5GTZCFIA18 |
| Manufacturer: |
FIA 8860-2018 Certified
Made from 100% high tensile carbon
Small shell weighs 2.5 Lbs. Large shell weighs 2.7 Lbs.
Eight ventilation holes for use with Stilo Helmets Top Air systems
Prepared for side and frontal drinking systems
What's Included:
- Helmet
- Stilo HANS anchors
- Ear Cushions
- 3mm Clear Visor
Stilo and HANS Helmet Bag
Stilo's ST5 GT line of racing helmets are engineered for maximum flexibility to integrate into any racing environment. The Stilo ST5 GT Carbon features a lightweight carbon shell with a taller eyeport to allow for use in both closed and open cockpit racers. Two shell sizes - one for X-Small through Medium, and another for the larger sizes - allows for weight savings without sacrificing fit. Side-mounted ports allow for the easy integration of intercoms, hydration systems, forced-air, or all 3! The standard 3mm Clear visor (other shield types in a variety of tints sold separately) mounts with machined aluminum fasteners and creates an air-tight seal via a rubber seal.
Under the new FIA 8860-2018 standard all helmets must withstand the following tests:
Standard impact: Helmet impact at 9.5m/s. Peak deceleration on ‘driver’s head’ shall not exceed 275G.
Low velocity impact: Helmet impact at 6m/s. Peak deceleration shall not exceed 200G with a maximum average of 180g.
Low lateral impact: Helmet impact at 8.5m/s. Peak deceleration shall not exceed 275G.
Crush: A 10kg weight falling 5.1 meters onto helmet. Lateral and longitudinal tests. The transmitted force should not exceed 10 kN.
Shell penetration: A 4kg impactor dropped onto helmet at 7.7 m/s.Visor penetration: Air rifle fires 1.2g pellet at visor. Pellet must not penetrate the interior of the helmet.
Visor coating: Transmitter test to ensure colouration and vision is not significantly changed or distorted.
Retention system: Roll-off test and dynamic test to ensure strength of chin strap and its attachments.Chin guard linear impact: Impact test with full headform at 5.5m/s. The peak deceleration shall not exceed 275G.
Chin guard crush: Hammer hits chin guard and measures ability to keep impact away from the head.FHR mechanical strength: Test to ensure high strength of attachment points for Frontal Head Restraints.
Projection and surface friction: Test to ensure helmet surface uniformity and that friction is minimized. Shell surface also subjected to BARCOL hardness test for resistance to penetration.
Flammability: Helmet exposed to 790 Centigrade/ 1454 Fahrenheit flame; it must self-extinguish once flame is removed.
Choose options
Stilo Helmet Sizing
| Size | X-Small | Small | Medium | Large | Large Plus | X-Large | XX-Large |
|---|---|---|---|---|---|---|---|
| Metric (cm) | 54 | 55 | 57 | 59 | 60 | 61 | 63 |
| Measurement (in) | 21 - 21.25 | 21.25 - 21.5 | 21.75 - 22.5 | 22.75 - 23.25 | 23.25 - 23.5 | 23.5 - 24 | 24 - 24.75 |
An effective helmet is one that fits properly. Have an assistant use a measuring tape, or a piece of string to measure the circumference of your head starting at a point approximately one inch above the eyebrows in front, around a point in the back of the head that results in the largest possible measurement, and finally wrapping back to the front. It is a good idea to take several measurements to make sure you have the largest one.