Arai XD-4 dual-sport motorcycle helmet became available in the spring of 2012. It’s the forth generation of Arai’s dual-sport (crossover design) helmets. The first XD became available in the late 1990s. The XD-4 is a slight update of the Arai XD-3. New features in XD-4 include brow vents, updated shield design not compatible with the XD-3 shell, an improved chin vent with two additional holes, new shell shape for better aerodynamics, a larger chin vent slider and larger top vent buttons for easier handling with gloves.
Just as other XD helmets, the XD-4 can be used as an off-road or street helmet. Both the off-road peak and the face shield can be removed. It is DOT-and Snell-approved, available in sizes XS-XXL with prices ranging from $589.95 to $719.95 depending on the graphics.
Bill C., a professional motorcycle gear reviewer says that the chin strap of the XD-4 is short and badly padded. He also noticed that the ventilation of XD-4 isn’t as good as on other Arai helmets. Regardless, he gives the XD-4 a good rating. Another professional reviewer, Greg Drevenstedt, criticized the XD-4 for being noisy. “The visor created a prominent whistling sound if I lifted my chin up too high. With the vents open, the high-flow helmet can be quite noisy, a problem solved with earplugs.” Drevenstedt also gives the XD-4 good rating—he had owned an XD-3 for several years and says that the XD-4 is even better and more comfortable.
Overall, the Arai XD-4 is one of the best dual-sport helmets, extremely light for its features and comfortable, though a bit pricey. You can order Arai XD-4 helmets at leatherup.com.