ARAI Quantum-X Helmet - Diamond Black - Large 0101-15721 XD-4/VX-Pro3/VX-Pro4 Helmet Liner — S Sliding chin vent actuating mechanism

Sliding chin vent actuating mechanism is thicker and easy to use with gloves

compact and crash-resistant

use single 12V 35W bulb

Diffusers can be removed or replaced quickly and easily by removing a single screw on the rear-duct center brace

Universal mount kit that allows fitment of Acerbis handguards to 7/8" and 1-1/8" bars

ARAI Quantum-X Helmet - Diamond Black - Large 0101-15721 XD-4/VX-Pro3/VX-Pro4 Helmet Liner — S Sliding chin vent actuating mechanismRound oval shape, achieved by using an interior head liner that combines thicker front and rear pads with thinner side pads, is designed for riders whos heads are slightly wider rather than elongated Improved Glance Off Ability Variable Axis System (VAS) shield system lowers the pivot point by an average of 24 mm, making the shell surface area in the critical temple area much smoother and better able to reduce impact energy getting into the helmet