Alpinestars Supertech S-M10 Alloy Helmet XL Black/Orange/Fluo Red When blow-by starts to increase

When blow-by starts to increase on other pistons and power starts to fade

00"-10" - 50J

Padded microfiber gaiter provides a comfortable rim around calf while sealing the opening from debris

Silicon BNS pull tab for convenient and safe engagement of the BNS

Optional cold weather breath guard

Alpinestars Supertech S-M10 Alloy Helmet XL Black/Orange/Fluo Red When blow-by starts to increaseManufacturer: Alpinestars MPN: 8301720 1403 XL Title: Supertech S M10 Alloy Helmet Size: XL Option: Color: Black Orange Fluo Red Alpinestars approach to the creation of the advanced technology in the Supertech M10 draws on its depth of experience from over half a decade of world class innovation across the spectrum of motorsports and especially, its deep rooted commitment to motocross. As with all other categories of technology that Alpinestars has