Stilo ST5 FN Zero FIA8860-2018 Helmet (Size: 64)

• FIA 8860-2018 Certified

• Made from 100% high tensile carbon

• Small shell weighs 2.6 Lbs. Large shell weighs 3 Lbs.

What's Included: 

• Helmet
• Ear Cushions 
• Stilo HANS Post Anchors 
• 3mm Clear Visor
• Stilo and HANS Helmet Bag 

Stilo's ST5 FN series of helmets eliminates the integrated accessory ports that are commonly seen on Stilo helmets. Removing these ports, and combining with a full Carbon shell, results in one of the lightest and most aerodynamic full-face helmets on the market. The taller eyeport is ideal 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. 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.