Arai - Quantum-X Full-Face Helmet Color:Silver Aluminum ABS/nylon outer frame to resist

ABS/nylon outer frame to resist roost and increase durability

Rebound adjuster underneath at the cartridge bottom

Transitions® adaptive sunwear products have a range of light transmission levels

and aren't so big they get in the way of your knees and legs while riding

Arai - Quantum-X Full-Face Helmet Color:Silver Aluminum ABS/nylon outer frame to resistImproved glance off ability A smooth shell is key to a helmets ability to slide across a surface or Glance Off an obstacle during an impact. Arais VAS shield system lowers the pivot point by an average of 24mm, making the shell surface area in the critical temple area much smoother and better able to reduce impact energy getting into the helmet. QVF and QVR intake exhaust ducts The Quantum X features QVF three position intake and QVR exhaust ducts for