Alpinestars - Supertech M10 Carbon Helmet - Team Size:X-Large up to 27x9

up to 27x9

The flow of this new DNA Fcd filter is 19

The EU switch is fully compatible with this kit and can be added to all other models

durable full-coverage helmet

Alpinestars - Supertech M10 Carbon Helmet - Team Size:X-Large up to 27x9Designed and developed for Professional MotoGP athletes where going faster and being protected is the goal. By minimizing drag and ensuring optimal aerodynamic stability, air management outside and inside of the helmet, and a comfortable, customizable fit, the S R10 enhances the overall experience in racing and sport riding. The Supertech R10 is the Pinnacle of Alpinestars racing helmets. Outer Shell: Molding technology: multi composite combination