Arai has come out on top of the wide-ranging JD Power and Associates 2008 Motorcycle Helmet Satisfaction Study for the tenth consecutive year, further cementing the brand’s long-held position as the world’s best crash helmet. The J D Power study examines 11 key areas of owner satisfaction; ventilation/air flow, quietness, de-fogging, face shield draught-proofing, ease of replacement and scratch-resistance, colour/graphic design and scratch resistance of shell, strap fastening plus helmet weight and overall fit and comfort.