The Arai XD4 for 2015 includes some new features inside and outside that make it a winner in virtually every category. As a long-time user of Arai helmets (typically theCorsair (review) and XD models) ...

February 20, 2012 – Arai formally introduced the XD4 helmet at the 2012 Dealer Expo in Indianapolis, Indiana. I stopped by the Arai booth to ask about their internal shape “evolution” for the Signet-Q ...

Big manufacturers rarely open up their factory doors to the inquisitive eyes of journalists, and when they do, it is typically to show off the state-of-the-art nature of their manufacturing process.

We may receive a commission on purchases made from links. Those who have been considering getting one of the company's helmets may first want to know a bit more about which of these models has the ...