Arai Vector Helmets
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The Arai Vector was introduced in 2007 to replace the older "Astral-X." The Vector has an "intermediate oval" shape, which is shorter front-to-back and a little wider side-to-side than the long oval shape of the Arai Profile. This fit package begins the shift from oblong toward round. See a full writeup of this helmet at webBikeWorld and more info on Arai Interior Shapes. In 2011 the Vector was replaced by the Arai Vector 2 Helmet.