ALPINESTARS SM5 Helmet - Compass - Matte Black/Orange Fluo - Large 8303321-1149-LG Billet Pressure Plate 75-inch constant velocity cores for

75-inch constant velocity cores for exceptional sound and performance The 2

Stock Part you cut off back 8

Air flowing from the intake channels into the crown

Headers mount to the head with machined stainless spiggots and flanges made from 7075 T651 aluminum then hard anodized and spring mounted

CNC machine billet covers made of 6061 T6 aluminum

ALPINESTARS SM5 Helmet - Compass - Matte Black/Orange Fluo - Large 8303321-1149-LG Billet Pressure Plate 75-inch constant velocity cores forLightweight outer shell is constructed from a technologically advanced impact resistant thermoplastic The inner and outer surfaces are engineered to minimize the effects of oblique impacts Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption Patented visor release system insures the visor is released with the correct pre determined amount of force, irrespective of the angle of impact Maximized