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1Type
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2Year
3Make
4Model
S-M8 Radium 2 Helmet
S-M8 Radium 2 Helmet
S-M8 Radium 2 Helmet
S-M8 Radium 2 Helmet
S-M8 Radium 2 Helmet
S-M8 Radium 2 Helmet
S-M8 Radium 2 Helmet
S-M8 Radium 2 Helmet
S-M8 Radium 2 Helmet

S-M8 Radium 2 Helmet

Color

Black/Neon Red
Black/White
Bright Red/White
UCLA Blue/White

Size

Add to Cart

Item: 482-91402X

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9140L

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9140M

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9140S

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9140X

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9140XS

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-91392X

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9139L

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9139M

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9139S

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9139X

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9139XS

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-91422X

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9142L

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9142M

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9142S

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9142X

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9142XS

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-91412X

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9141L

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9141M

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9141S

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9141X

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell

Item: 482-9141XS

Weight: 5 lbs

Package Dimensions: 17.2 x 11.4 x 12.7

  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
  • ECE/DOT
  • 4 anatomical shell sizes
  • Multi-density EPS polymer liner
  • Patented A-Head fitting height and angel adjustment system
  • Unique, patented visor release system
  • Collarbone protection feature at the shell base
  • Multi-directional Impact Protection System (MIPS)
  • Emergency Release System (ERS)
  • Eject inflation system fitment inside the crown of the shell
Alpinestars approach to the creation of the advanced technology in the Supertech M8 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 mastered, bringing a new, highly complex, product to fruition requires specialist experience and know-how and a project plan led by the best brains in protection development. The S-M8 shell has been profiled with performance as a priority and with a design style that identifies the profile of the helmet and its sculpted surface as uniquely ‘Alpinestars’. Another key feature is the S-M8 shell sizing solution; each helmet fit size has its own appropriate shell size to deliver the most anatomical solution for the wide variety of fit needs worldwide.

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