The Spartan 1.2 Priona Helmet distances itself from similarly priced competitors with a lightweight fiberglass shell and aerodynamically superior shape to benefit street, touring and track enthusiasts alike. The Spartan 1.2 eliminates a common source of whistling with lateral “Shark Skin” diffusers around the baseplate mechanisms and cuts turbulence at higher speeds with a split rear spoiler. Large ram-air intake vents located on the chin bar and crest channel cool air in as hot air gets expelled by the venturi created by vents just below the rear twin spoiler.