ALPINESTARS SM5 Helmet - Venture - Black/Bordeaux/Yellow/Glossy - Medium 8305122-1358-MD 3" Slip-On Muffler Calf expansion panel with stretch

Calf expansion panel with stretch ribs for a custom fit

Developed around an over-sized K&N high-flow air filter that is designed to boost performance

thus effectively regulating the temperature inside

Offers a professional look and factory sound

ready to install into the shock body

ALPINESTARS SM5 Helmet - Venture - Black/Bordeaux/Yellow/Glossy - Medium 8305122-1358-MD 3" Slip-On Muffler Calf expansion panel with stretchLightweight 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 ensures the visor is released with the correct predetermined amount of force, irrespective of the angle of impact Maximized