Ventilation optimized by means of numerical simulation (CFD). "Autoseal" system: flattens the visor onto the helmet, offers better soundproofing and seals the helmet (against water and cold). Extremely stable, with aerodynamic attributes enhanced by its spoiler. Available XS (53/54 cm), S (55/56 cm), M (57/58 cm), L (59/60 cm), XL (61/62 cm).Comes with Pinlock ready visor & pinlock insert. Biker Bits Ltd, 18 Sutton Road, Seaford, East Sussex, BN25 1RU. This item is in the category "Vehicle Parts & Accessories\Clothing, Protective Gear & Merchandise\Helmets & Accessories\Motorcycle & Motorsports Helmets". The seller is "biker-bits-ltd" and is located in this country: GB. This item can be shipped worldwide.